First, don’t tell me that the answer is just to “not bottle things up”, because that’s objectively incorrect too. Society doesn’t want you to have any negative emotions. I need to know how to not express negative emotions at all whatsoever unless I’m alone. I know it can be done because it is done in many other people on the planet.
Edit: Ok so I think one of the things I want to try doing next is ask for a med change from my psych provider.
One of the most healthy practices you can do is to fully experience negative emotion, let it wash over you and fully occupy you, then breathe deeply and let that emotion go. Holding on to negative emotion has long term health consequences. Remember that you have no control over the world, just your own reactions to the world. I have a lot of anger that I try to let go of this way. Life has become a long series of just being shit on by everyone and everything. But what can I really do about it? Keep working and moving up the ladder to where the shit sandwiches have more bread I guess. In the meantime, I try to practice mindfulness with my emotions and breathe through them. You can use the Dune Litany Against Fear with pretty much any negative emotion.