Hey there. I know exactly how you feel. All I can tell you is to hang in there and that it is possible.
I am 22 years old now. Struggled with eating disorders since age 16. Bulimic since 19. Since the age of 19, I had not gone 30 consecutive days without binging/ purging. I thought it wasn't possible. I would get so frustrated to fail over and over again. Everytime I went back to my old habits I would promise myself I would change the next time. I would try harder. I would ask for help. I would beat this. One more time. Never worked that way for me.
I am on day 34 today. Took me a little over 3 years to do it. The only thing that kept me going was being CONSTANTLY reminded where I want to be. Before I always got motivated at the beginning but lost that motivation after the first week or two. I had to surround myself with positive things and joined a program that I knew I would stick to.. I cannot tell you how many programs I have quit through these past several months.
Something else that helped me open my eyes is how much we are hurting ourselves. A few weeks ago, I found out another friend I went to treatment with passed away from heart failure and another is back in treatment. It is things like this that make me realize how important it is that I overcome this. I should try to beat this for all the friends I have lost to this battle and because we deserve to recover from this hell.
I know you can do this. I am right here with you. Don't give up and let me know if you need anything at all.