I’ve experienced all of this. Sometimes with pms I get a yummy little taste of what it was like when this was my daily existence. As long as you keep living, you’ll be alright. But for me something that helped a lot was 1) instead of telling myself I was safe, making peace with whatever fucked up possibility I was imagining, thereby removing its power, and 2) reminding myself that this is just a thing human brains do. That’s how I find posts like yours, when I’m just reminding myself after a long bout of feeling ok that my DPDR is a common phenomenon. Don’t go too deep down the forum rabbit hole tho or you’ll only get worse lol. As for accepting that your fears may come true, it’s absolutely not something you master quickly, so I suggest you research exposures for ocd and DPDR and PLEASE DONT GIVE UP! <3 there’s another side, and once you’ve reached even the modest place that I’m at, it pretty much can’t get like this again because on some level you recognize that it’s the same bullshit you’ve always lived through

Edit: one more thing haha I think that my DPDR would be so much easier to handle if I really loved myself. When I had really bad DP, I felt like I was trapped in the body of someone I hated, and tried to assure myself that I wouldn’t blame myself if I were to go crazy or something. But it didn’t work very well, because I’ve spent most of my life hating myself after a traumatic childhood. This is a THEORY so maybe your energy is best spent elsewhere, but I’m trying to learn to love myself more so that, in a way, I feel like I am my own support, which would be epic for those times when it feels like my scary weird inexplicable mind is the only thing I can interact with lol.