When you are still laughing at others' success.

I can see that you are proud to be a standard bearer, but your physical fitness can't meet the requirements. Just exercise hard. There is no need to care what others say. They won't understand your efforts, so they are not qualified to laugh at you at all. You don't need to pay attention to them. After all, you can't control what others say, and you will only make yourself unhappy. Shut them up with facts.