Welcome Prodigy!
I am 27 and I can relate to a lot of what you have described. My relationship with alcohol and food/binge eating has also been cyclical, with periods of sobriety and regimented eating and exercise punctuating the alcohol and food binges.
Ultimately, I decided that I was done forfeiting my life to this maladaptive behaviour, and I've decided to take control for once and for all. I am now 6 weeks sober, and my short term goal is to reach one year without food binging or extreme dieting, whilst maintaining my sobriety long term.
I went to see a psychotherapist for a few months and found that this greatly helped to strengthen my resolve and mindset for embarking on this journey and to plan for long term success by identifying triggers and focusing on how to mitigate these as they arise.
I have found the community here on SR invaluable for ongoing encouragement and reinforcement of my decision to create long term sobriety benchmarks and not to succumb to my usual cyclical downfalls.
Wishing you all the best, and welcome to SR!!