If these are the thoughts you're having you need to go to them. It's not healthy and they're your parents.

I WANT TO SAY IT BUT IM SCARED I'm scared. .

It doesn't matter how old you are. Just go to them and tell them how you feel. They might decide to send you to a therapist or a counselor.

Maybe it is btw I'm 12 how am I supposed to say that

Suicide isn't the solution to pain sky. You need to talk to your parents about having you see a therapist.