help,Im relapsing!!

So I was doing well, managed 7 whole days of regular eating and then last night I fell and binged . These past few months i've been able to get back on track the day after a binge but then this morning I binged again . Help!! I really don't want to undo all the hard work I've put in. I've excepted that it will take time to cure from this and I told myself that I will have a binge every now and again along the road of recovery, but that the main thing is to try to pull out mid-way through a binge or to get back on track as soon as possible after but yesterday I didn't try hard enough to fight it and today I just let myself binge. What happening to me , I don't want to slip back to how it use to be when I'd binge for days and days in a row before I could stop! I don't want to be like that ever again, I don't want to binge at all, I just want to be a normal teenage girl like everyone else my age!! I feel as though I've lost out on so much of my adolescence, just consumed with food and thoughts of food and depression.
Can anyone offer me any advice, please. I feel like I will never beat this , like I might have some good days here and there but that I am always gonna binge in the end and that I will never be free from this.

Emer, you will be free from this some day. Everyone has relapses, what matters is that you were able to go a while without binging and that you can go back to fighting it. It will get easier and easier to resist.
Are you seeing a professional?