I had my first suicide attempt at 12, just because you're young doesn't mean you're not in pain. That used to make me so mad when I'd tell my dad I was depressed and he'd say "What do you have to be depressed about? You're a kid!"
Kids are people too.
Get some help. Reach out to an adult you trust. You're not alone and you don't need to self-harm. You can learn other ways to sooth yourself and because you're 13 it's a good time to learn. Lots of us here have been on that road and we don't want you to be on it with us.
A way my therapist tells me to self sooth myself is to give myself a hug. If I'm angry or scared, just wrap my arms around myself. If it's really bad, I go hug someone else (like my kids or my husband.) I'm 36 and I'm just learning this, don't wait like I did.
__________________
|