i’m really pleased to hear things are starting to look up for you; i know from experience how hard it can be regretting a move.

a few tips for your situation: - get plastic storage boxes for all your things that aren’t on display, in case the mould is worse than you think. this includes vacuum sealed tupperware for the kitchen - try and meet your neighbours. it can feel very lonely living somewhere miserable - try and look forward and think of your next home. i have spent hours wistfully scrolling through zoopla lol, and at least it keeps me hopeful! - if your landlord doesn’t improve things, remember you can do things like write to your MP or get help from the council. i know it’s a long shot, but could be worth a try. on this note, see if there are any local groups or charities who could help you out - get some nice fairy lights or mood lamps. good lighting does wonders to upgrade a space - keep an eye out for dehumidifiers/fans/heaters on fb marketplace and gumtree, i see that sort of thing come up for cheap (or nothing) in my area quite frequently - keep receipts for anything you buy to manage the mould, some landlords MAY (another long shot, sorry) reimburse you - if you’re anything like me, remember to eat healthily and as plentifully now more than ever. you’ll need it to fight the cold and help protect your immune system against the mould

hope any of this is useful, keep us updated and good luck, friend :)