Ok seriously it sometimes takes having a 'come to Jesus meeting' with yourself...
I've been there. For REAL. I had the regain. I had the 'I can eat everything just in small amounts' self talk. I had the people come up to me 2.5 years post VSG and ask me if I was pregnant!!! Now at 4.5 years post, I've lost my regain, lost even more and am getting ready (finally) for my skin surgery.
For ME, it took an ugly health issue to get my act straight. It's different for everyone but you have GOT to find your "WHY".
Once you do that, then you need to just get back to the VERY BASICS. attend some bariatric support groups. track your water, activity and intake. empty ALL the junk food out. start taking your own food to EVERYTHING so there is no temptation. Go back to your surgeon office. talk to them. seek out EVERY form of support you can find. attend an Overeaters Anonymous group in your area, or a Food Addicts meeting. Do WHATEVER it takes. Sadly, statistically the regain odds are not in our favor.
Let's all prove those odds wrong.