UK wages are already poor and cost of living is insane.
Are you going to spend that day in your sorry mould ridden flat with other housemates also skint with nothing else to do?
Where do you even go? Shops are dead, public transport is unaffordable and state of it resembles soviet union near its collapse, entertainment, attractions out of reach. Sure there are some free things, but how many times you will go there before it is boring?
So I don't know, 4 days at main employer and 1 day doing Deliveroo? Selling weed? Only Fans?
You can tell UK is going downhill fast.