(I may edit in the morning after I sleep)
I maybe going through/getting out of one, currently. I have good and bad days, bit mostly good recently. It started around 23. I had a lot of delusions about the people I lived with, and about people in my church, which I found out were half true, I just didn't have any evidence. Good old christian cults and their amazing ability to manipulate through shame.
Along with the delusions, came sever anxiety and a constant sense of guilt. I eventually dropped out of all my music classes because of my paranoia and insecurity. My instructors were really upset about that. I just couldn't write anymore and playing lost purpose after that. The next semester I dropped out of school. I couldn't take the pressure. This is when my thoughts of suicide became more serious.
My symptoms got better when I moved out of the place I was staying, to live with a friend that wasn't associated with the church. But his marriage issues turned into his wife trying to commit suicide over an abortion she had, her manipulative mother moved in to "help out". That then retriggered what I was able to suppress with booze and frequent masturbation. The mother's manipulative nature, and the nature of living with depressed, "crazy" people, put my paranoia back on red alert. It's more clear now, what was imagined and what wasn't.
Moved back in with my parent's, couldn't stand that they didn't agree with my "chruch" and convictions, so I moved in with the one friend from before. Him and his wife were more put together, than they were. Children on the way tend to do that. I stayed with them till a little after their kid was born. Then another cult member had bought a house near my work. He was kool at first. Gradually, became more creepy. He had like this plan to make his home like a family unit, but with young men from the church. He was the "head of the house", and being older, he was there to guide us or some shit. Our very mental friend living with us, that smoked synthetic cannabinoids all day, was too much for me. (It's like crazy people attract other crazy people) That lasted 3 months before I noped out and finally got my own apartment.
That's where I was able to have the freedom to be myself. Yell at my self in the mirror. Whip myself with a belt. Cry in my bed. Act like a fool with my cat. Have the freedom to finally get the nerve to leave the cult. Have the private space so I could finally get to second base. I eventually discovered weed and found a reason to wake up. Then I lost my place after the transmission in my car broke. Oh life
My issues are the product of my temperament, mixed with my religious upbringing, and then enhancing it by joining a cultural bubble that reinforced my neurotic religious guilt and inexperienced idealism. I have lots of little things and insecurities to still work through. I'm moving back in with my parents again to save money and pay off debt. I shall see how my mental state holds up there, this time.
As far as your OP goes. I experience those behaviors as well. More one the angery side, though. They act like anxiety attacks, just expressed in a different way, or adult temper tantrums. So I treat them like that. I have gotten way better with these after using psychedelics. A few intense trips can show you a lot about the way you think. It's the safer alternative to Tony Robbins.
I also sedate myself with pot. CBD, is so good for my anxiety, and over all mood. Not to say THC making me stoned doesn't play a role. It makes it easier to just let my ruminations, and negative thoughts, go.
When I hold on to my anger I have to actively choose not to break things and throw/hit stuff to deal with it. It's still there as a reaction, but I now know I have the option to deal with it better ways. I don't have to bottle my emotions, then shake the bottle till it explodes. I think talking to/yelling at yourself can be very healthy, but you need to actively listen to your words. Just saying hurtful things to yourself, is more likely to reinforce those views. But you need to say them to get them out there. I started to see lots of entitlement, and delusions.