Despite working hard in school, I feel like I'm a really boring, uninteresting person. I don't think I can change.
If you want to, you can. Why do you feel that way?
I don't really know. None of my friends or family seem interested in talking with me.
Don't depend on feeling wanted from anyone. It'll drain your motivation to live. Instead, focus on yourself and learn to love yourself.
What will happen if I die? Will everyone feel sad for my life?
I'm not certain about that, but feeling so much pity for yourself will only worsen your mind state. I understand you're worried, but it'll be okay.