The answer to this question for myself was: yes, but holy God does it take some time and a whole lot of work.
I went through a mega-relapse on methamphetamine last year, just over a year on from having completed 12 months parole (following a 7 year bid). I attempted a move across state, to a town I had a lot of history with. It didn't work out - not only did the psychological cracks start to show in the few weeks that I was there, but I relapsed as well. I came back home, stayed with family a while, but I also brought an ounce of crystal back with me. It was an absolute hellish two months of use, including an involuntary committal and culminating in my homelessness.
Once I stopped, though, the psychosis didn't. I was still dealing with residual delusions of people following me, grand conspiracies hatched against me, voices and psychotic narratives that just completely dominated my life, even while I tried to lay the blocks to rebuild it. It was terrible. I tried to commit suicide while I was using, and I tried after I quit for that precise reason - the psychosis didn't, and I thought that was my new reality. I was crazy, but just sane enough to know it. Pure hell. But slowly - and I do mean slllloooowwwllyy - and with a hell of a lot of work, much of it rooted in past CBT/RBT training, I was able to rebuild healthy thought processes and behaviors in my day to day, just constantly and incessantly bolstering and reinforcing myself TO myself, inundating my head with a stream of Positive Self Talk. I found over time that if I changed my foremost thoughts to align with positivity, the voices started talking positive too, and I realized the whole time, I was the voice... hard to explain and I'm sure I'm doing a bad job of it lol, and I hate to sound like the whole 'pull yourself up by the bootstraps' thing, but all I'm saying is... for myself, just putting my head down and working, working, trusting the process of it all, both internally and externally, but this:
With faith, time and ambition, everything's gonna be aight.
