I really don't know what to do

I'm a high achiever at school, and I do well, but for some reason I feel so dejected about everything? I feel like I haven't done enough and I just wish I could redo high school. My parents don't provide much emotional support and my mother almost certainly has an undiagnosed mental disorder. I wish I had a normal family with parents who actually cared about my opinion. On one hand, my mother is insanely emotionally immature and displays all the symptoms of a borderline personality disorder, and on the other hand, my dad doesn't really listen to any opinion that isn't his own. I don't have that many friends so I don't have many people to talk to. Idk why I'm writing this confession... I just had to let it off my chest. I just want to be happy, you know?