Antipsychotics are awful and I quit them because of the side effects, as I too was basically catatonic and could not function. APs affect some people really harshly. I suppose they do help with actively psychotic people but the side effects make life beyond awful for many.
The simulation stuff unfortunately to me falls right in line with the rest of my psychosis. For example, I was on the street convinced I was hacking the simulation with my mind and communicating with Edward Snowden telepathically, leaking documents both to people on my social media as well as in person. Thought I was moving the sun at one point with my eyeballs, which I believed had had cameras inserted there during a prior psych hospitalization. I believed Snowden and I had together hacked my eyeballs and given them supernatural powers. I burned pages of my passport in public after wiping my blood all over the pages when I cut my thumb deeply on a broken beer bottle I had smashed in the street while convinced I was being followed by dozens or hundreds of cars and blocking the road. I can go on, and on, and on with the (literally) crazy situations I ended up in. I also encountered law enforcement and (real) gangsters multiple times while homeless in a violent city, and it is a miracle (....?) I made it out alive.
Eventually, the thoughts of simulation theory eventually were linked with a deity or alien technology and I thought I was helping save the world. In reality, I was burning all my bridges, spending all my money, accruing criminal charges, etc. etc.
Honestly, I do not believe the simulation stuff is real whatsoever; even if it is, it changes nothing of our current reality except perhaps to make it even more...meaningless? The things I thought were SO REAL during my psychosis, were, in reality, just delusions or hallucinations. Had any of the stuff been occurring I thought was occurring, even one moment of it, it'd have been international news (I thought I was communicating with reps from mass media outlets during the whole thing, incidentally.)
I'm not gonna sit here and tell you I know what was going on with your situation at all, but after many months of reading about what psychosis is and other people's experiences during psychosis (on SS, reddit, and FB support groups for psychosis), I have come to the conclusion (on my own, not a single psychiatrist or anyone else convincing me of this) that all the coincidences I noticed, all the wild synchronicity I saw and heard, well...my eyes, ears, and mind indeed were "lying" to me on some level. It stands to reason our minds want to make sense of the chaos and random shit we go through and we see and hear about in the world, but accepting the cold, bitter pill that this is reality, it is random and chaotic and brutal, and it blows total asshole, is the only thing I can really do at this point.
I do relate to you in that I noticed WILD coincidences and synchronicity, and in my case, I even believed I had influence/control over those things and that I had been chosen at some point (by God/gods/future civilizations/aliens/etc.), but now that I am out of that situation and finally have done my research on psychosis I can safely say I don't buy into any of it. This is my two cents, as rambling as it was, and I hope there was something helpful there.
Anyway, thanks for sharing and I do apologize then for the knee-jerk reaction I had. In addition to my broken brain ruining my life 7 months ago and the appearance of more troll posts on SS as I mentioned, my mom has been dying from alcohol-related liver failure over the last few months and I've been witnessing it firsthand. Needless to say last year as beyond awful, and also, I admit I have been bottling up my frustration at dumb posts for a while and took it out in this post.