Hi, Welcome to Health care magic forum.
As you are wishing it is necessary to reduce the weight to be healthy and fit.
It can be achieved by 3 steps, one is diet, avoid taking calories, fats, fries, and oily foods.
Increase the activity, by practicing
yoga, morning walk, exercises, and do any work in front of you , what ever the work is.
Minimize the sleeping time, practice late to bed, and early to rise.and avoid sleeping in the day time.
Wishing for a quick and complete recovery. Thank you.