how to feel safe again in "tainted" places?

tw for mention of attempts (nothing descriptive)

Apologies if this is the wrong sub, I haven't been diagnosed with CPTSD but this situation feels like it fits.

I've been going through a very rough time and spent several months last year trying to kms in different ways, all at my apartment. Eventually I went to stay with my parents, which was supposed to be a temporary thing, but every time I try going back to my apartment I can't stand to be there for more than a few minutes. The smell makes me feel like I'm dying and every room is contaminated with bad memories. Is there any fixing this?