Yeah, if I were you I’d cut my losses and try to find another place. If you’re lucky enough to know this place has bugs while very little of your stuff has been exposed, I’d get out before the problem has taken hold in your life.
That said, there are ways to deal with infestations. Likely if it’s been a problem dating back years, there’s some place they retreat to that kick starts the population each time they’re exterminated. But in typical homes, steam treatments from professionals can eradicate the pests. Mark Rober made a pretty good video pushing back on some of the stigma:
https://www.youtube.com/watch?v=2JAOTJxYqh8
Good luck to you. I hope you end up in a good place after all this. Sucks to get this close to a stable living space only to be thwarted by invertebrates.
Tangled if true