Yes you need help. Your hair is just the last straw. More is going on here.
Your hair is gorgeous. It's long and thick and very healthy looking.
As a teen we are often suicidal over what seems so important. (Speaking from experience) But as an adult you find out what real problems are. (Sounds bad, but bear with me..)
The point is it's not so bad now. (As a teen) Get help, then search YouTube for your hair type and watch some videos. Try some stuff. It'll be ok.
We'll be here when you're better. ((Hugs))