So much great advice, thanks so much everyone. I've built up a bit of a cash cushion and am preparing myself for no more scented candles or Deliveroo for the forseeable future.
So, credit control is clearly huge. I'm thinking back on a supplier I used for a job last year and feeling doubly guilty about how utterly shite my employer was at settling their account.
Cordelia, thanks for the NICS tip (totally new to me, so will look into it)
YassKween (great name, BTW) great, thank you. I'm actually seeing an accountant tomorrow. I've met him once before and he seems very sensible.
Iris I think I'm going to have to get much more grown up about boundaries of all kinds. No DCs at home, so it would be so easy for me to turn into a completely unstructured pyjama-wearing blob.
Pastel that's very useful advice, because I've been having greedy thoughts about everything I might be able to write off to tax, so if I just function under the assumption that I WILL get audited, safer in the long run.