Careful about asking on here. There are many people who are much better off than average, with eye watering amounts of disposable income.
Sounds like you need to go back to basics with budgeting for your circumstances.
Have a look at the MSE money makeover to maximise your income, save for annual and irregular expenses, minimise all essential expenses so you have as much money as possible for spending on nice things rather than boring bills.
www.moneysavingexpert.com/family/money-help/
Separating out money for discretionary expenses can help, so get all your income paid into one account, transfer the right amount to a second account and have all your direct debits paid out of this.
At the beginning of the month transfer money to savings for annual and irregular expenses like holidays, Christmas, insurance, broken cars, pets and washing machines etc etc - this is likely to be a few hundred pounds a month.
From what is left, you need to pay for food, fuel, family meals out, child expenses, days out etc and only after then can you look at spending money for you and DH, and from this, split it 50/50 and transfer to an account each and use this to for all your own personal spends including things like lunch/coffee/breakfast at work - this can be a real money waster and something to look at if your money isn't going as far as you'd like.