Some of the most important work I've done to date in managing my well-being is boundary work.
I've become proficient in techniques like Nonviolent Communication and Clean Language to give people feedback on what behaviour I find acceptable and unacceptable.
However, I can now see a level beyond this where instead of attempting to manage the behaviours of others around me, my ultimate freedom is in becoming 'un-triggerable'.
Basically, my default now is that whenever somebody crosses a perceived boundary of mine, instead of asking, 'How can I stop this person from doing that again?', it's 'How can I resolve the underlying trigger such that this behaviour has no power over me?' regardless of how objectively 'bad' or 'toxic' that behaviour might be.
I'm sure there are limits to this approach, but that's now my default orientation.