All what we have to keep in my mind is that we are not going to be on the stage forever. The drama will come to an end one day and all the characters will disperse. So let's decide to play our role with full commitment and dedication, as being a critic won't help much in improving our performance.
Remember only those stay in memories forever who gave their best, not the ones who kept discussing about the rest.
The day you accept yourself with all your imperfections, you are no longer affected by the opinion, judgment, sarcasm and criticism of others. And that is the day when you are truly liberated!