I sometimes hate my life?

I was the same at school hun. And even now, am scared of most people lol. It's fine to not be a people-person, do whatever makes YOU happy. It's great you get on so well with your family and most families have rough patches in their relationship but make up a lot of the time. School can be horrible but ignore people who are mean to you, it's their problem. Just get on with the studying side and do what you want. All the best. xx