As you get older and wiser one thing you greatly improve on (or at least) should is knowing how to pick and choose your battles.
Not everything deserves a reaction, not everything deserves for you to fight back and lash out.
Not every altercation or inconvenience deserves for you to get even or defend yourself.
Sometimes it os best to let things go and move on. At the end of the day words are just words and they do not physically hurt you.
This does not mean you do not stand up for yourself at all. This means that you do not need to react in the same manner to defend yourself all the time to the situations life constantly throws at you.
Example, if you are at work or school and a client, patient, coworker, etc says something that upsets you. You can always ignore it and move on. Especially if it is something that is of no importance.
I had a customer call me out of my name because they could not get what they want. My response was, “thank you, have a nice day”. I did not need to react with anger, or disrespect when I know who I am.
The best part of evolving as you get older is realizing that what someone says to knock you down does not bother you if you know who you are.