I don't think life is worth living
Why do you feel it isn't worth living?
I'm tired of being ignored by my friends, parents and teachers
While feeling like you don't want to go on living is rather extreme, it is understandable that you will get overwhelmed by life sometimes. If you feel like nobody listens to you, perhaps you could find a therapist to talk to. They are very good at listening and helping with problems.
Fuck being ignored, I don't care anymore.
I am sorry you are hurting but you should really talk with someone. You don't need to keep the pain inward and punish yourself.