Well, I'm pretty good at being hard on people, but that really is only needed to wake up someone that has fallen asleep at the wheel. You on the others hand seem to be well aware of what is going on, you just need to decide when you've had enough. Once you've decided that, then you've got to be willing to put the work in to get back on track.
The great news is that your body is an amazing thing. IF you have stretched your sleeve your can shrink it back to its normal size. Keep in mind it's normal size is bigger than it was at 6-8 months post op. you fully healed sleeve could be as much as 10oz.
Now here's the hard part, in order for your sleeve to shrink, you cannot fill it up. You are going to have to go back to basics, a liquid/soft diet for a couple weeks isn't a bad idea, but for sure you are going to have to measure/weigh your portions. Keep your portions @ or below 6oz at a sitting when you are eating. This is not such a big deal with liquids(as I'm sure you already know).
There is really no point in us beating up on you. You need to talk to that woman that watches you brush your teeth and ask her if she has had enough yet, is she willing to do what it takes to fix her problems. I am truly sorry for all the heartache and setbacks you've endured. But the bottom line is there is only one person that can make this happen for you.
Today you need to decide to live like no one else, so that later you can LIVE like NO ONE else.