The problem with gastric surgery is that you still need motivation for it to work. It isn't an easy fix. If anything it requires *more* willpower and motivation to stick with the nutritional plan.
I have a friend who had it done and she had to prove she could stick to a super low calorie low volume diet for a month or two before the operation, because once the op had been done she wouldn't be able to eat any kind of amount of food again for a long long time, and it could have done her serious damage if she had overeaten.
So y'know. After watching her go through that, and then the months and months of low energy and pain and recurring illness and battling to keep her nutrition levels up, it certainly doesn't look like an easy fix.
Good luck with whatever you choose xx