My DP started almost three years ago, but the severe cognitive impairment didn't hit until about a year and a half in. So I've been dealing with it for about 18 months now, and nothing has helped me so far. It was pretty much an overnight thing, I remember from one day to the next not being able to recall things well or do anything that required planning or multiple steps. Granted it came at the tail end of my battle with alcoholism (I quit drinking when the impairment started). But with it came the most crazy anxiety. I'm not sure if that was part of the impairment itself or if it was my own reaction to the impairment, as I remember panicking about it a hell of a lot in the beginning. I got all crazy with trying remedies to fix it. Eating walnuts and salmon all day long in hopes of improving my brain function, stuff like that, lol. Since then I haven't really noticed any improvement along the way. I just kind of deal with it now. But it's not fun at all, and difficult to accept it as part of daily life. I struggle a great deal when it comes to focusing on conversations, TV shows/movies, and other basic day to day things. I can't count the number of times someone will tell me a story, and by the end of it, I won't remember who the story was about. I'll be like "and who is this?" at the end. It's crazy to think the brain can be this impaired without it being anything serious.
Overall I feel it makes DP an extra lonely place to be. When it comes to impairment like this, there's invariably a lack of understanding from those around you, since for a lot of people it seems to be Alzheimer's or nothing. Shoulder-shrugging from the doctors and psychs. Websites and clickbait ads with empty promises of curing your brain fog and cognitive impairment if you'll just type in your credit card details. Really feels like one fucking cruel joke of a world sometimes.