For starters, if you find it easier to talk to people online than you do in real life (which I think we all do to some extent, or at least large numbers of people), then try PM'ing someone and ask to have a chat to them. I get what you mean about not wanting to talk to people, I've been the same a lot lately, it just feels like a lot of effort, particularly if you're not listened to by the people you try to talk to.

Try talking to someone online about everything, and I'm sure your family will sort themselves out eventually, you just need to wait it out.

I hope any of this helps.

Certainly you must have some family that you can rely on. It's a bit hard coming into a social age with not many people to practice with. Forums are a good exercise but you do want to try and reach out to others at school.

I know lonely can be very miserable. Maybe you should let your mum know how you feel.