Sounds like we are both new to this site. I am looking at surgery late October/November. I had my sleep study done and I too have severe sleep apnea. CPAP helps me alot (when I use the machine). I am looking forward to not needing the machine eventually. It's funny, I didn't even know I wasn't getting any kind of good sleep until I used the CPAP. I just thought I was extremely tired because of stress, getting up "early" (6:00am), working, taking care of the kids, etc. I'm also diabetic and am looking forward to hopefully not having to take any meds or insulin.
My sister recently had the surgery. She is 2 1/2 months out and has already lost 40 lbs. It was difficult in the beginning with getting all the Water, Protein in, but she is doing great now.
I've also tried many diets and have never been able to keep the weight off. With every diet I've tried, I gained back all the weight and another 20 or 30 for good measure!
Good luck with your journey and let us know how it's going!