Start practicing now. Experiment with protein smoothies. My sister made me one with protein powder, one pkg of splenda, a tsp of coffee, and a splash of milk mixed with half a blender container of crushed ice. It tasted exactly like...
Check with your insurance company. It is likely they will pay for it, under certain conditions. Then follow the rules EXACTLY. If you don't follow exactly, they throw you back to square one.
You can go to any hospital near you and participate in their bariatric support groups. They are open to all.