I am 9 days post op and I felt just like you. I had done massive amounts of research and as the day drew closer I worked to find reasons why I shouldn't. My support system was great, they just supported me and made me make the decision myself. My biggest fear was the loss of food enjoyment.
I sailed through the surgery. I had zero complications, very little pain, no nausea, the hardest part has been not being able to eat like I want to.
In all of my research before surgery and since, I have not found one person who regrets it. Not one. I look at YouTube videos, I visit this site and it gives me the encouragement to press on. I have lost 16 pounds and that feels so good. I remind myself that it isn't always going to be like this. It will get better. I am excited for what lies ahead. The preop was hard, but you did it. The recovery is hard, but you got this. Please don't give up too soon.