Thinking of getting gastric sleeve surgery, my mum had it done and she had lost tunes of weight, do you think it’s, a good idea?

It is a lot more effective than the the Lap Band with embrification, but is a bigger surgery. It isn't nearly as radical as the full by pass. I suggest finding a local support group, and listen to people who have had it and hear the good and the bad. You will have to change how you eat forever. Its not something where you can just eat however you want and the surgery fixes it. Surgery always comes with a price. My ex wife had the band and lost about 40 lbs, which was what she was able to lose years before going to a dietician without surgery. She wouldn't change her diet much. She kept eating more than they told her too.