Never settle for mediocrity.
Your body is a reflection of how you can take care of other aspects of your life. Be strong, be bold, be happy!
Other people may want to distract you because they see in you what they haven't achieved. Stay focused. Be proud of your commitment. Remind yourself that, despite their criticism and opinion, you are still an inspiration to them and others.
It's a lonely; but, rewarding road. Stay fit!