I was exactly in your same spot, though I had kept some of my weight off.
I am 56 years old and through the years, I have lost and gained the same weight over and over. In 2014, I started having problems with my feet/ankles and I was miserable and in constant pain. In Jan. 2016, I decided, this is it. It's now or never. So I went on WW and quickly shed 50 lbs. By the end of 2016, I started putting the weight back on.
It has always been hard to share with friends/family what goes on in a brain like ours. I thought about my weight every day, all day. It's a horrible roller coaster of emotions.
In January 2017, I woke up one morning and thought to myself, this will stop now! I called a friend to had bariatric surgery and within a week I had an appointment with her surgeon. I knew my insurance wouldn't pay for it because I was basically a "healthy" fat person and since I had lost some of the weight (280lb down to 232lb), my BMI was too low anyway. I decided it would be the best $15,000 ever spent. I ended up only having to pay about $8,000 out of pocket because I had a hiatal hernia fixed at the same time.
I have only told my daughter and best friend, and they are both supportive. I didn't want to hear from others - Oh, you have been doing so well on your own, why have surgery?!?!
On 2/15/17 I had the surgery and am down 30 lbs to 202 and feel great. I can say now, the best money and decision I have ever had. I had literally no pain from the surgery (just nauseous for 3 days). My surgeon told me most doctors aren't doing the band (and he won't) because the failure rate is so high.
Really, only you can make the decision on your surgery. I just knew I couldn't live like I had been for the last 20 years. Good luck with your decision.