I could literally copy paste this post replacing the gender and genitalia after today's events. Damn high school brats...
Why do you bother? Because you are a man, and you can do it. It is a god damn awful stage where you will keep hating yourself, but things will have to improve. Trust me, I've been going through hell and it still isn't over, but there is nothing you can't get done with the right spirit. Don't let your body and mind chain you now. I spent far too much time acting that way and in the end, it was just wasted time.
PS: be glad you know you are a man by high school. I wish I would have realised it 15 years ago. It's all about willpower right now.