wow, that's a lot for you too deal with on your own.
I know that feeling, that sort of a dull I'm-not-capable-of-feeling-anything-right-now/my-emotions-have-gone-on-a-vacation-without-warning feeling. that sort of busy signal in your head/ where you feel in a different reality and just feel dull and heavy.
I really really hope that you go and talk to someone, you are going through alot and in my experience bottling it up doesn't lead to good things. i know every one is afraid to take that step to talking to a counsellor - I was, but they're confidential and impartial and maybe it would help. Something to think about maybe, but at the end of the day its up to you. I would really encourage you to talk to someone, at first probably someone outside your immediate family.
I hope things go well for you, i hope you find someway to let all that distress out, and know that there are people out there who are wishing you well.
If you feel the need to rant or just want to chat feel free to flick me a message.