Are your friends supportive of your ED? I can identify with a lot that you're going through -- the ED, gaining weight (I'm 5'2" and 125 now; before I gained 30lbs in 2 months, then lost ten) the constant hunger, amenorhea (no natural period since I was 15), and wanting to give up. I was anorexic when I was 15, then after years of restricting myself with food (counting every single calorie, subtracting even 30 calories from the next day if I went over) and punishing exercise, something inside me stopped holding back the urge to eat, and became bulimic. Being bulemic is the ultimate failure for a past anorexic, but it's a very common cycle. Now I feel like every fear about food that I held as an anorexic has been realized, and besides losing control (again) I'm petrified to even have certain foods around me, knowing that I'll stuff myself with them. Any disorder removes some sort of normalcy from your life, and the worst that I've found is when you're socializing with friends and they offer you food. When I was anorexic or restricting I would always make up an excuse, and then feel superior to my friends because I wasn't eating. Now I try to act "normal" and accept a chip or something, and I end up eating the whole bowl.
I can sympathise with your struggles. Something that can help is to eat small meals with PROTEIN every three hours. I'm also guilty of eating very little during the day, then eating lots more at night. But any body recovering from an ED is in crisis mode, and you probably know about limitations that you're putting on your metabolism by not feeding yourself regularly, too. Good luck with soccer this year!
Jessie