I am 18 years old and 396lbs and I'm wondering about loose skin.

Hi my name is Alexis and i am 18 years old i stand at 5'6, 396lbs, and my bmi is about 52% i have done tons of research on getting gastric bypass surgery and should be getting it in the spring of next year. My major concern is the loose skin. I am often told that i shouldn't worry about the loose skin because i am so young my skin still has a lot of elasticity. My doctor says i should be around 150lbs which is a 219lb difference. I am really worried about the loose skin. What can i do and expect?

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