Follow your Dr. advice. Read about the surgery and what too expect. I ordered and read 4 books on the subject before my procedure. I got them on Amazon.com.
My biggest problem is I still sometimes have problems when I eat. You can not eat fast and must chew, chew, and chew again. Rice and Bread are not in my diet unless I attempt it at home and I usually get sick with PBing. However, you learn to substitute. I eat cracker and either baked or mashed potatoes. I can drink Diet Coke, however I do not like the way I feel so I may drink 1 or 2 a week. I was drinking 4 20 oz. a day before.
Work is a problem since I only get 30 min for lunch and I can't eat much in that time so I usually have chicken, Tuna, Shrimp, or Egg salad with a couple of crackers. It goes down well and I can get back to work not feeling bloated. Sure saves on the pocketbook.
Also, you must learn not to drink while eating. I thought that would be hard since I drank 4 glasses of Tea with lunch before. However, now when I drink more than a small sip or two I pb.
It seems like a lot of problems, but you adapt. It is all worth it in the long run.
I have been eating more and not loosing so I am in need of another fill. Do not ignore that fact. My Dr included free fill for the first year. I now have to pay about 100.00 for them, but it is a small price to pay. I am scheduling one for next week. I hope this helps.