I have to a low bmi 31.9, and I'm going to surgery, I have struggled with my weight since I was 11. I am now 21 and I believe in prevention as I believe in cure. I don't want to be 31 and then wishing I done this surgery 10 years ago. I am a very motivated person but when dieting hard I seem to get stuck on 11st6 and it won't go down which is frustrating. I am 5ft1 and my 12st4 weight doesn't belong to me!!! I would though suggest that you are mentally prepared for the changes on your diet, because the band ain't a miracle but a tool. A tool that I need the help to succeed, and with my determination I know I will. In uk people with 30 bmi over are allowed this surgery but self pay.
Hope you make the right decision for you