Please don't attempt this, especially given that you're inexperienced.
Everyone has free will and it's unethical to do this. The repercussions and consequences could well be very unpleasant for both of you. You don't have any right over another's free will. This is black magic and will not end well.
If you're determined, you could use white magic to enhance YOUR chances at love in general, but putting a spell on another person without their consent is asking for trouble.
Love spell work in general rarely if ever works out for the spellcaster, or their target. I've seen far too many situations (and can speak from experience) where the target become obsessive and it can become a very, very unsafe situation. If it's successful, it can get to the point where you'll have no choice but to perform cord-cutting rituals and those aren't always successful.
You have to be prepared for the possibility that this person will be attached to you, for better of for worse, for a lifetime.
You also have to be prepared for the possibility that you'll have to continue to have to repeat the spell work and that's not an enjoyable experience either.
Depending on who you talk to, love spells are considered to have incredibly weak, and insecure energy attached and they can create significant upheaval and bad karma for the caster.
Blood magick is especially a no-no, particularly if you're not experienced or under the guidance of a godparent or mentor. In the context of a love spell? If you're this desperate to keep or attract a partner, you likely need to have a reality check in terms of the circumstances.
Your best move (as suggested above) is to perform work that makes you feel better about yourself and you can also put it out there what you're looking for in terms of a partner.
Sorry if this comes across as cruel, but it needs to be said
What is with all this witchcraft mumbo jumbo lately..it's all over the internet.
First time I am seeing it here though.
This is your first message on a pro-choice suicide website.
Tell me, am I feeding a troll by responding?
Because blood rituals from your menstruation are not only unsanitary but also futile as far as your wishes and pursuits are concerned (which are apparently to control another person against their will).
Come on bro.
I blame Tik Tok tbh. There is an entire subsection called Witch Tok and unless you know better, it's far too easy to get sucked in by folks who don't have a clue what they're doing and when mature practitioners try to correct them, it starts an all out war.
I could probably write a 20 page essay easily on the foolishness that I've seen and while there are some good, responsible practitioners (from all practices, not just pagan witchcraft) present who are actually try to teach response practice - the vast majority are fairly young (and obviously clueless) people trying to convince others to order a reading or spell work at exorbitant and predatory prices. Don't get me wrong, there are older ppl trying to take advantage, but it's mostly young people trying to suck others in.
My bigger concern is "new age spirituality" making an even bigger comeback (is Law of Attraction, fake gurus etc). There is an entire podcast series dedicated to the phenomenon called Conspirituality.