I was overweight and my skin ismessed up !what should ido?

Weight loss: If overweight, weight loss w/diet and exercise is important. Don't know what messed up your skin, but may be stretch marks , which are tears in the skin cause by weight gain. They can be covered up, but not improved by creams and lotions. The only possibly effective therapy is cosmetic plastic surgery, but that's a big step for a non-health and non-life threatening problem.