To ask if you could make this amount of money last 3 weeks and how?

[CrumblyCookie]

Around £540.
After all bills paid.. this has to last next week (half term) and then another just under 2 weeks after that. Also to include food for 1 child + 1 adult. And a small amount of petrol.

Of course you can manage, it's just meh.

We have no money worries at all and I easily go 3 weeks (and more!) without going to theme parks or having my nails done, because, well, we’re busy. Working, ferrying kids to hobbies, exercising, seeing family etc. Never found it meh, or even thought about it to be honest!
Maybe that’s why we have no money worries, we’re too busy to spend it!
ETA I’ve had my nails done twice in my life so it’s definitely not something I’d miss for 3 weeks.

And you are using petrol, paying for the kids hobbies, food shop etc on £180 per week?

Petrol and food shop, yes. Although there are 5 of us, rather than just the 2 in the OP so I’d be scaling up that amount for an appropriate comparison.
Hobbies paid for by DD monthly, so classed as a ‘bill’ in our house. It comes out on payday so wouldn’t be included in my ‘disposable income’ amount. Most activities aren’t pay as you go nowadays are they? None of ours are. Football training is £15 per month, paid by DD. Same for Brownies.

Fair enough.