First of all i think it's great you guys come on here and try to help people out with their probems.

Secondly i don't know where to start.

My names Robert I'm 15. I dropped out of school about 5 months ago because i have chronic migraines. It means i have a really sore head nearly all day and nearly every day. Since then my life has pretty much stopped. I used to have a lot of friends and i was quite popular but since i left school I've only spoken to two of them.
One of them is a girl called Rachel who i see about every 3 or 4 weeks. I've known her my whole life and i can talk to her pretty easily about anything. I've got funny feelings towards her and i am attracted to her but i don't know whether that's because i really genuinely want to go out with her or just because she's the only girl in my life right now. Pretty confused.
My other friend is my best friends who lives across a couple of fields from me who i see pretty much everyday and i do talk to him about being stressed out and stuff but not much.
My parents are still together and I've got two older brothers. Gareth who's 19 and who went off to university in England in October who I'm close to and Daniel who's 22 and i can't stand.
Daniel suffered from clinical depression from 14 to 17 and he still has it to an extent. We get on extremly badly and argue all he time. He can't empathize or reason like a normal person and he is a burden to the whole family. He argues constanly with everyone and always gets his own way because no one questions what he does because they know it will result in a row. Therefore he gets to go on the computer when he wants, tv when he wants, a lift to his friends house when he wants.
My parents desperately want to kick him out but they know as well as i do that if they did he would become homeless and eventually kill himself.