Just wanted to chime in...I am 4 years out right now. I did great for the first 2 years, then had some regain. for the past 10 months I FOUGHT that regain. I searched online, I bought the 'reset' book, tried to print all sorts of meal plans, etc. I never was honest with myself to admit that my eating/drinking was completely out of control.
Then last fall, I had some sobering medical news. One of the things that I initially had surgery to combat was reappearing. And, the doctor was moderately concerned. That was ALL it took. My brain kicked in, and I was on fire.
I went strict Keto (doesn't work for everyone, but it works for me) and lost all of my regain (except about 7 lbs right now), losing about 50 lbs in 5 months. I have rejoined a gym. My medical thing has resolved.
I have been tinkering with all of the LCHF info, intermittent fasting, and reading lots of randomized control trials about metabolic disease, insulin resistance, etc.
I had to get out of my own head and just let auto pilot take over. I KNOW what to do. we all know what to do. For me, true Keto works great and I'm feeling good. Another 30 lbs and I will be at my TRUE goal and will pursue plastics.
It TOTALLY is do-able, even this far out, to get control and get back on track.