I'm going to talk to you from my personal experience. I'm 33 no blood pressure no diabetics no cholesterol. I didn't want to continue gaining more weight. I saw my self fat & sloppy and I wanted to live a long happy life so I did it only for me. I went in with open eyes passed all my evaluations & blood test. Had surgery & even though I'm struggling keeping food down I'm losing weight & feeling happy. I was 211 pounds 5 feet. I'm now 172 pounds.
This surgery isn't for everyone. If you love food so much putting it off for a while will not change anything. Do it when you feel ready.
I had back & knee problems & my knees no longer hurts. My back well I had a back injury at work years ago so maybe with weight lost will help or maybe not.