Yeah I was asked to see a counselor at school once because they thought I was depressed lol It was no fun though, she kept trying to say I was just making it up.

Anyway your case is slightly different.

Maybe it's just your hormones? Your body starts changing around 13-14 and that's probably why so many kids that age think they're turning into vampires or werewolves.

If you don't want to go to therapy though, you should tell your mum. It may damage your self-esteem. Also if people at school find out, they might tease you. Thats what happened to me.