Im emotionally numb australian teenager looking for some answers or...

[Ixl]

...people similar to chat to? hi
Basically Im a normal 16 yr old boy, go to partys regularly, hook up, concerts etc
Got a great job for my age, got a car
But recently i just stopped enjoying myself, and putting on a fake smile.
Basically, Iv Summarized my problems that could be the cause:
1 - Iv been at a school all my life, and next year(yr 12) Im moving to a different school. Im scared shitless about it, and afraid Ill lose my old friends from previous school
2 - My family is completely disfunctional, parents had a messy divorce and hate each other, dads a workaholic and I never see him(i live with my dad, my mom dosent work enough and blamed me for it. Both stepfamilys are completely screwed in the head.
3 - Theirs a girl that apparently wants to go out with me, and all my friends are pressuring me to go out with her because shes hot, but when I see the people she hangs around, it puts me off, and my X completely screwed my life over, so that also puts me off relationships.
4 - Due to my successful brother, my father has high expectations of me, and because of this, he chose my subjects for year 12, which are really hard and I dont know if I can handle them.
Those are the main problems in my life, and they might seem insignificant to you, but they are causing me a great amount of stress.
So I was wondering If their is someone who has been or feels like they have been in a similar position as me, or can help me in anyway. We could chat or something.
Cheers