Unfortunately, a lot of us have had the same thing said to us.... me included....
Hell, i even said it to myself.... i even tried, like really tried but can admit i failed, hence why i decided to go ahead with it.
I was sick of my weight holding me back, sick of yoyo dieting, sick of my life revolving around my weight, food and clothes.
What made the decision for me was that i had lost weight... (with the band) and pretty much gained most of it back once i had it removed... i realised then i cant do it on my own, that i needed help.
Initially i was dead against it, thinking its extreme to cut out your stomach for my weight... that i must be so vain to do it when i am only 220 pounds.... but you know what..... i needed it....
My weight holds me back, emotionally and mentally and even socially.... ive been on both ends of the scale (literally)... and my body and health is much happier on the lower end.
Do whats right for you... it is your life... your choice... your journey.. your body.... if you are not happy with it.... then it's up to you... no one can tell you what to do... if it feels right... go for it.