I am about 16 months out from my sleeve surgery. I have lost 225 pounds and have been maintaining below goal beautifully for the last 4-5 months. I eat low carb and have since six months before my surgery (almost 2 years now). That's how I keep everything in check.
I am in the best shape of my life. I look amazing, and socially, I am having more fun than I even did in my 20s. (And now I have the money to back it all up! )
The sleeve is only a tool, and it will only help you as much as you will help yourself. You have to redefine your relationship with food, set goals, and stick to them. That is the only way you are going to be successful.
My advice is to embrace your sleeve, throw yourself into being successful, and live and love your new life.