SqueakyV

Whatever you do, do NOT use YouTube videos as reason to base your decision. They are about as unreliable as it gets and loaded with bad information.
Research it online, find a surgeon in your area that you trust, and attend a seminar. It's the best way to learn the facts rather than hearing people's unproven antidotes on YouTube,

First stop is good info. It isn't always here, but check out surgerons in your area for info. Also, check on your insurance coverage, many cover this but each one has different guidelines, No point in going to far into this without knowing cost and your presurgery requirements. I have had 3 good years, fight some with getting more off, but it's because I treat myself to often; when I do I just pull my mind back into it and get it moving again. I am not at "goal" but I am in a size 12 and not a 24.
Once I had my seminar, I started making changes in my food life. I was using smaller plates, cut out sweet tea and tried to make better choices and smaller portions. By the time I had to do my preop diet I had adjusted to the new thought plan.
Good Luck.