I can relate. Back in 2011, when I was 370 lbs. I wanted to make changes, but I didn't want to commit to anything permanent.
Well, I got exactly that. I lost 70 lbs, but then started gaining some back and I just couldn't break 300 for more than a day. No matter what I did. I struggled for like 7 years. Finally I had the band removed and revised to the bypass. I can't tell you how many times I've regretted not getting the damn bypass in the first place. Those 7ish years could have been SO MUCH BETTER! But... I was too afraid to commit, and in the end, that's what sabotaged my weight loss, lack of commitment and follow through.
So, if you want something that's going to work, and last, and your biggest issue is that it's going to be a "forever" change... you have to ask yourself, how long do you want to be overweight? Do you want to get only some of the way to your goal and then have that non-permanent solution fail you?
And yes, I know that there is a rebound risk with all WLS. But, the changes that I personally have been forced to make, in order to make this revision to bypass work, are forever changes, because they need to be in order for them to work.