Not all pain is alike. There is good pain (the good pain of growth, overcoming, fun challenge) and then there is bad pain (injury, toxic people, etc). Then a simple way to live life:

Don’t do anything which causes you (or has once caused you) bad pain.

Then this means we should be grateful that we were endowed with pain, because it instructs us what is beneficial to us and what is harmful and bad for us.

Ignore convention, societal expectations and traditional morality and ethics. Avoid the bad pain (physical and psychological) which is subjective and specific to you.

ERIC