Great and massive suffering is ahead, both physical and mental. You'll never fully get over it, but it will eventually improve, so don't lose hope.
At the age of 12 or 13, you'll meet someone who you will fall in love with. Be kind to them and respect their wishes. When you get angry, DO NOT lash out at them. Try not to get angry at all, because the anger will hurt YOU. If you do, you will only have massive regrets. Please, please take this to heart-- please don't ignore this. Be patient with them. They will forgive you a lot of times, but they have a limit too. You are not your feelings, your mind is much more capable than that.
Very soon, you'll start to have questions about the world and about the existence we live in. It'll be scary and you'll feel helpless, but trust the process; don't run from these, embrace them. They will open your eyes and grant you a lot of awareness in the end. Keep pursuing those questions and never let it up, but don't forget that you still have your joys in life in spite of it all. This is not to say they are sacred, but that you should, pragmatically, protect them regardless.
And, in the end, don't worry if anything goes wrong, and do not mourn or lament it. There are no true miracles or true tragedies. All of it serves to transform you into someone wiser and more capable; even the bad things. You should strive to analyze and extract the useful, beneficial information from all events in your life, and eventually, it will all feel clear and it will make sense.
I wish I could be by your side to help you every step of the way, or hear your questions so I can answer them. But this lackluster message is all I can do.
You don't have a frame of comparison, so you don't know how good you have it right now; that's fine. I won't tell you to cherish something that, in your reality, is objectively unremarkable; because you couldn't even if you tried. But just remember, in spite of everything that happens, have fun and don't let it taint what you enjoy.