[It gets worse, but Rhys has already spooked the guy enough. More gently, he says,]

One thing at a time, man. It sucks and it's crazy, but you survive it. Starting small, just getting through the day. Basic needs, keeping yourself safe. Survival mode.

And there are good people here, that helps. The more you know about everything, the easier it will be, even if it's a fucking lot.