Human approval is unstable. Someone may praise you today and criticize you tomorrow, so it's wiser to anchor your life in deeper principles than in other people's opinions.
never take being mobile for granted. pick up some weights, ride your bike, take a walk, go for a run. be kind to your body by taking care of it while you can.
If you don't have a goal so meaningful it makes other people's opinions irrelevant, you will lose control of your life. You will adopt the goals assigned to you by your parents, peers, or society.