agree with @Hellbishop.

Simple solution to life's distress. Not basing your happiness on others' and what others' think of you .
Giving with expecting something in return is called trading. If you give sincerely, what others' think of you doesn't matter. Do what makes YOU happy.

Yes self awareness which in turn can help you to have awareness and empathy for others as you treat them with the same compassionate examining eye you do yourself.

Oh, sound like self awareness? Because our brain is not like ai programmed to analysis the situation to generate conclusion. I think is common, because a human brain remember things that with great emotional, when critical damage happen to our emotional, the brain will lost memories.

Yes, alot of people can be pretty critical of themselves not remembering what pushed them in a certain direction.

Self judging?

The same goes for when looking at yourself in the mirror. Always try to keep it a positive perspective but be careful of excuses.