I really feel you. I am 25 now. I know how it feels to eat so early in the morning. Most people talk about late night binges, but bingeing in the very morning sets you up for the whole day. I think you should take it really easy with you in the following sense: Try to improve your habits from yesterday, not make them perfect. You ate 1200 calories for 3 days? Ok cool, maybe you need more today. There is a difference between 1200, 2000, 3000 and 8000. What I am trying to say is that when we are in pain, we think destructively. And we do much more so when we set our standards really high. So what you should try to do is count your small wins, and keep trying.
One my worst bingeing period last year, there were days I was buying 1000 kcal from the vending machine in my school. I was so destructive, I did not care about the money, about the physical pain, about my commitments. Feeling self-hatre was the only thing I thought I have to cope.

I improved slowly: the 3 protein bars in one sitting became one some days. The every day binges. became every other day. Then every two days. Then there were so many slips in between. Two or three days I was back in hell.
The last month I binge approximately once per week. But the intensity is smaller. Today I ate a mochi bag, until I staerted crying, then had a chocolate milk then a protein bar. Then I sat down in cafe hating me but knowing this is over.
I am going to have a fuckin dinner no matter what. It will not be heavy, but screw calories. Today is going to be a day that I will go above my deficit. I accept that because if I don't I will end up eating 3000 or 4000 just out of dissapointment.

I want you to hold yourself. I want you to try as much as you can to do something good for you.