Let me also offer a perspective specifically on transition itself, as a trans woman.
Like others, I believe it would be a bad idea to transition solely for this reason, but this is what you can expect if you decided to do it anyways.
Passing: Although there is movement in the west to reduce the importance of "passing", the reality at the moment is that hate crimes towards anyone perceived as trans are commonplace everywhere. I can't speak for SE Asia, but my assumption would be that it's the same there. Be in the wrong side of town or the wrong side road and you might end up getting beaten up, possibly to death, or raped. So I'm sure we can agree that passing is a safety requirement, at least at the moment.
What does that entail? Transition to the point of passing is a multi-year long, cruel, brutal process. Some get pretty damn close in just two years, some will never be able to in their life. It's probably a lot more emotionally draining for someone who is actually trans, as any sign that they're not passing yet can be incredibly disheartening, making any attempts at learning to pass better soul destroying. These are things you can expect.
Make-up. You'll simply need to learn to do this. It's an incredibly powerful tool that, when used correctly, can even hide face shape reasonably well. Even if you practice every day, it'll probably take a year to get acceptable results. Additionally, online resources are a good start but what you really need to improve is outside perspective: Friends who will take you make-up shopping, help you practice, give you tips, tell you which parts can be improved or what other techniques you might wanna try out, etc. This step is really really difficult without a good support network of women friends. Even then, make-up for trans people can differ slightly from make-up for cis people, so it'd be even better if you have a trans woman or drag queen friend (though drag make-up is of course very very different from normal make-up).
Voice training. Whenever you're out in public places like shops, markets, hanging out with friends, etc. strangers will hear your voice. You'll have to make your voice sound convincingly female. Now, there are some good resources to do this out there, but even when you have all the knowledge and all the tips, learning to actually do it and committing it to muscle memory is once again a multi-year process. It usually takes about 2 years of constant practice for people to get to a point they're happy with. This will require that you're either alone at home or around people who support the transition process to the degree that they won't judge you for trying out what's ultimately going to sound like a very weird and distorted voice around them. You
will need to find at least one person you can have conversations with in that voice, otherwise you won't get the practice in that you need. Many trans people opt for a vocal coach which, depending on location, will probably cost you around $200 a month for at least half a year.
Hormones. Not all trans people go on hormones, it's a very personal choice. If you want a female body/face fat distribution, soft skin or natural breast growth, this is your only option though. The cheapest and least safe options start at about $50 per month. Effects will start to become noticeable by others probably by the 1 year mark. At this point, you're probably not ready to present female full-time, so you will need to find a way to hide your breast growth in public. Even then, your breast growth will most likely be very limited - Most trans people will only reach an A cup naturally. I could imagine that bullying for small breasts is also widespread. In that case, you might consider surgery. Plan $20.000.
Bottom surgery. Not all trans people have bottom surgery, it's an even more personal choice. Though in your case, this is ultimately the primary reason you're considering transition. I am assuming here that your goal is to be able to be on the receiving end of penetrative sex. There are different types of bottom surgery. The main one uses penile tissue and requires a certain amount of penile length to work. This one most likely isn't an option for you. The other one uses tissue from your colon to form the vagina. I am not too familiar with the details, but I believe it requires multiple surgeries with some weeks in between, as well as a colostomy to allow for excretion of waste while your intestine isn't attached, then re-attaching of the parts of the colon where the segment was taken, etc. This type of surgery also comes with some unique issues: The tissue is less resistant to damage than vaginal tissue. Rough penetrative sex can tear it, requiring surgery to repair. Self-lubrication does happen to some degree (more than in penile inversion) but most likely you will require a lubricant to have sex. The tissue is also prone to discharge. Developing colon issues can also affect the neovagina (Inflammatory Bowel Disease, Colon Cancer). You will need to dilate (= insert a specifically shaped/sized "dildo" and keep it there for half an hour) more or less daily for about a year after surgery, during which sex is not gonna be possible. (Penile inversion requires dilation for life, though frequency decreases down to once every 2 weeks @ 2 years after surgery). You will have a big scar. Plan $20.000.
Now, these surgeries are very expensive. In some countries, you may be lucky enough to be able to get them on health insurance. This will usually require a year of psychotherapy and a screening during which it will be assessed if you are really trans. Based on what you wrote, I assume that you are not. That means, no funding for you. Unless: You can pretend to be trans well enough to a psychologist for a year for them to be convinced you're actually trans. If you can do this, you might be able to get surgeries paid for at some point within the next 5 years. You will also get hormones paid for (after the 1-2 year assessment process). The only thing to consider here is that, because in many places this system is really underfunded and shit, you're essentially taking this funding away from a trans person. Though, if it was actually able to fix your mental health issues, I'd consider that entirely valid.
There are also many other points I haven't mentioned like your family probably disowning you and losing all your friends etc.
Then there are the emotional repercussions, specifically re gender dysphoria. You'll force yourself to live the lie that makes trans people transition in the first place. The make-up and fashion etc. will be a similar (though less over the top) process to becoming a drag queen - except you'll have to pretend to be someone you're not 24/7 instead of just as a character for a show. I don't know what your sexuality is, if you're bisexual and a bottom you'll be fine, but if you're a straight man you won't have any desire to engage in the sex acts you have now enabled yourself to have. You might want to live as a lesbian, which sounds like the perfect solution - but then why go through bottom surgery in the first place?
I believe you're looking at this the wrong way. If living with a micropenis is entirely unbearable to you, instead of looking at a sex change to female, look at sex changes from female to male. Trans men are in a similar situation to you - Many of them want a penis that can perform penetrative sex. Testosterone enlarges the clitoris into what is essentially a micropenis. Surgery exists that uses a skin graft, e.g. from thigh or arm around a cylindrical implant to shape the penis, moving the clitoris (or head of the micropenis) to the top. The implant can inflate and deflate with a pump, which, in the case of trans men, is usually inside of the scrotum - Squeeze one "testicle" to enlarge it until it's hard enough to have sex with, squeeze the other to deflate it. There are papers on a similar surgery method being used on men with a micropenis. Here's one such paper (though remember, post-surgery photos show a wound that is healing which of course will look a lot more raw than the final healed product):
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4708208/
I think, as crappy as it is, it's important not to internalise the things you hear from bullies. Like for example the "How will you pleasure a woman with a micropenis?". That's obviously a really dumb point. Most women don't derive much pleasure from penetrative sex. Studies over studies show that the most satisfied women are the ones in lesbian relationships. And most lesbians don't have a penis. The least satisfied women are the ones in relationships with cis straight men. That's because of all these men with the macho mindset that using their penis is all they have to do to pleasure a woman. The reality is, fingering and oral sex are the things that women actually enjoy. Or things like "You're not a real man". What makes a man a man in most cultures is not their penis. What makes them a man is providing for their family, being strong, stoic, supportive, kind and giving. Those are all features you can have. There's a new movement among young people in the West that goes even further than that. They believe what makes you a man is: Nothing. Being a man doesn't mean anything. It's nothing but outdated gender norms derived from physiology that was relevant thousands of years ago but makes no sense nowadays. There's nothing that says men need to be strong, other than that's what we're taught by society. But there's no logical basis for this.
I don't know if you're trans or not, maybe you will find out in a few years that this desire for bottom surgery actually comes from gender dysphoria. But as things stand right now, you're a man. You're just as much of a man (and honestly even moreso) than the people bullying you, because bullying is not something the ideal man does.
I know shit like this is really difficult to deal with when it's your lived experience. But maybe you can find a way to get away from these toxic people. They seem to be the posterboys of toxic masculinity. That's exactly the kind of shit feminism is fighting. Try to build a friend group that accepts you the way you are. I think any sort of feminist movement or organisation will absolutely do that.
I hope things get better for you.