Complicated- need help!

Right, I'm unreg because I'm here often. My problem is I've had bulimia for about a month and can't stop- first thing I need help with. I don't want to tell my parents because of how much they'd worry. Unfortunately last weekend I got really REALLY drunk and told my brother about it- then told him it was his fault (not true) because he teases me about my weight sometimes. I also told him about being bi and that I fancied one of my friends (true, but I told him it wasn't- and I'm also confused about this because I'm not entirely sure). I then threw up and now my cousin isn't talking to me (he was there too). How can I make it up to both of them?? I need help with the eating disorder too- I don't want to screw myself up!!!

I think that's all, lol. I'd appreciate any help, thanks for reading!