I will start this post by saying everyone is different and I can only tell you what worked for me. It may not work this way for you but here goes. This is what I did and it worked for me for at least the 10-12 months. Doing this I lost 100 pounds in 5 months - no plateaus, then 50 pounds in the next 5 months.
1. Drink at least 64 ounces of water per day (mostly water only with some crystal lite)
2. No caffiene (no coffee or tea for the first 6 months)
3. No carbination - period
4. Bought a food scale and I weighed and measured my food. I had to relearn how to eat. I had no idea how much an ounce of anything looked like.
5. Eat from a small plate and use a small fork and teaspoon. It forces you to take smaller bites.
6. Never drink 30 minutes before or 30 minutes after you eat.
7.High protein - remember the 30/60/90 rule. By 3 months post-op you should be up to 90 grams of protein. I had at least 1 protein shake a day.
8. Eliminate carbs as much as possible and if you do eat any carbs they should be complex carbs - basically no sugar period.
9. Start exercising as soon as you get clearance from your surgeon. I joined a gym at 4 months post-op (that was my doctor's rule) and hired a personal trainer. It didn't help with the skin but I looked awesome

10. Take ALL of your vitamins and supplements.
Alot of people will see this list and think I'm insane and maybe I am

but it worked for me.
I'm sure I'm missing some things as I am almost 9 years post-op and don't necessarily remember everything. I was laughed at by my other DS and VSG friends but you know what, I hit my goal within the first year and most of them did not. When I had my surgery there were about 10 of us who all had our surgery within a year so we had a local, weekly support group. That was a huge help as the on-line support wasn't as good as it is now. But I would sit in that group and listen to many complain about not meeting their goal and that wasn't going to happen to me. I was determined to lose all my excess weight and I did.
Sounds like you're doing the right things now. I know I was quite obsessive about this but for me I didn't risk my life having surgery to not meet my goal. There was just simply too much as stake.