Dissos are great stuff. One of my favorite combos is DMXE + 4-HO-MET + 5-MeO-MiPT, it provides this unique state of being very present in the moment yet completely unfazed by anything, as if you're a higher-dimensional being able to interact with the world but not vice-versa, with the added benefit of pleasant body sensations, cool visuals, and some degree of introspection. Naturally all the petty human worries are absent during the experience, but that's also why as with all such substances one has to take great care to avoid using them as a crutch. That said IMO they're much better than benzos addiction-wise while providing fairly similar effects.
Funny you should mention 3-HO-PCP, I got some coming this week and am looking forward to trying it despite (or maybe in spite of ) what you said, IME your overall state before the trip plays a much larger role in how it will go than the substance itself. I once had the exact experience you describe on aMT, which is supposed to achieve basically the exact opposite. But we shall see. It's said to be one of if not the most potent disso by weight, so perhaps you dosed a little too high?