Strengthen your skeleton and muscles. Pull, push, balance, hold and twist. Strength training gives muscle definition, muscles hold up the skin. Think about posture and correct form. 

Train with the pros.

Professional trainers have worked hard for their qualifications. Find one to suit your needs and work with them to teach you correct form. Learn from them how to work out at home too. Dedication and Motivation is needed to continue to work out without them. You can do it.