How to not have loose skin after gastric sleeve surgery. Pls help me.

I lost 4okgs weight before naturally and did a 360 belt lipectomy and an arm lift, over two years i gain back, now weighing at 210 pounds at 175cm height, no matter how hard i exercise or diet i can't seem to loose any more weight except gaining back, I planned to do a Vertical sleeve gastric surgery, i do not have any loose skin, and I'm afraid.. that i will get it after the VSG surgery . pls tell me any suggestion for me to overcome this problem.

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