Any DIY ways to deal with mold? I really can’t afford a $15,000 remediation fee.

I’ve been dealing with black mold that keeps coming back on my bathroom walls for months now. I’ll clean it, it looks fine for about a week, and then it’s right back.

I reached out to a professional mold remediation company and was quoted $15,000, which I just can’t afford.

Has anyone dealt with something like this before? Were you able to handle it yourself, or did it eventually require professional help?

Any advice, DIY tips, products that actually worked, or things to avoid would be really appreciated. Thanks!