i dont know what to do anymore

You are a child. Figuring out life as you grow up is just part of the process we all go through. It is intensely personal to you, of course, because it's what you're living through, but we have all been there.

The adults in your life — parents, teachers, whomever — are supposed to help guide you through this period. Unfortunately, it's all too common for our adults to be shit at their jobs and force us to figure it out on our own, to make our own mistakes that might turn out catastrophically.

Just realize that, although it may not seem like it now, things get better. You will figure things out, which will introduce you to new problems that you'll have to figure out. That's just life. It's hard and it's painful and it seems like there is nothing else, but life is also full of wonder and joy. You just need to figure out how to find it within yourself.

So, tell your teacher. If your parents find out, unless they're monsters, all they will want to do is help you get through this period. So you might really want to talk to them, too.