Is it over for me? (TW Binge eating)

So for some background I am training to go pro in track & field at the moment, but I have to cut some fat/weight to perform better in my events. I gained my ED two years ago and was eating very little and not very nutritious foods, then in the last four months that switched to binge eating and very unhealthy eating habits due to a lot of mental health and personal circumstances etc.

BUT this week I decided to get it together and I almost had a solid frickin week of eating and making progress I had five days of controlled and healthy eating. I didn't feel like I was restricting myself and I had no cravings. Unfortunately, I went out with a loved one and absolutely binged on junk and barely ate any healthy food. They did not try and stop me and even supported my bad habits! (they don't believe I have an ed). SO today I just broke down mid eatin and now I'm asking myself this,

how am I going to do better for myself?