Canadian lady

I agree with everything @@Djmohr, @@Inner Surfer Girl, and @@VSGAnn2014 have said. The only thing I would add is that WLS is a tool, it is not a magic bullet for weight loss. In the end, what it does is help you to develop good eating habits. By decreasing the size of the stomach, it helps you to reduce your portion size and forces you to eat slowly, chew thoroughly, and generally eat more healthy. But, it is only a tool, and it is totally possible to overcome the tool and sabotage your weight loss.
One example is grazing, or eating small amounts constantly. By doing that, you get around the fact that your stomach is smaller, but still rack up the calories. Or drinking your calories by drinking high-calorie drinks throughout the day. Or eating high-carb or high-fat foods. These are some ways to defeat the WLS.
In the end, if you have real food habit issues, you would be best to combine WLS with therapy to deal with those issues so they don't sabotage your weight loss.
As far as hunger is concerned, it is different with everyone, and you won't know until after surgery how it will be. Most people have less hunger, but not everyone. Everyone seems to struggle with "head hunger" (cravings) to a greater or lesser degree.

Everyone has these doubts.
Ask yourself: If I don't have the surgery will I continue to gain and/or if I lose what are the odds that I will gain it all back, plus? If I do have the surgery, what is the likelihood I may reach my goal and then gain a little bit back? Under this scenario would the surgery still be worth it to you?
Also, as to which surgery to have. That is a decision you need to make with your surgeon. Learn as much as you can so you can make the most informed decision possible.
From what I observed almost everyone has an opinion about what is "best", but keep in mind that we are naturally biased based on our own decision and experience.
I was sleeved on April 20 of this year and couldn't be happier with my recovery and progress. And, yes, I had the same doubts as you at one time. I was just sure that I was the unique person who would fail. Now, for the first time in years, I am confident and hopeful about regaining my life.
Edited: because autocorrect is insane.