I'm a single parent with two tweens and a dog and I work full time. Gross annual salary just under £50k, plus child benefit of ~£2kpa. Ex husband sends £185pm.
I'm very fortunate that my mortgage payment is only £300pm. Long story as to why, but that's what it costs me.
Household bills (council tax, utilities, mobile phone, TV licence): £390pm
Car and home insurance: £70pm
Pet costs (insurance, food): £70pm
Car costs (service plan, fuel): £100pm
Car loan repayment (including overpayment): £280pm
Tax free childcare: £90pm
0% purchase repayment: £55pm
Kids clubs and pocket money: £250pm
Subscriptions (Netflix, online photo storage, Amazon Prime, Audible, charity donation): £35pm
Household luxuries (cleaner, wheelie bin washing): £90pm
Groceries: Average £600-700pm
Savings: £500pm
So that's a total of £2380 bills etc and £500 savings. It leaves around £300pm on average, but as some of my salary comes in an annual bonus it's much less left over most months.
I do dip into savings regularly (had to take a lot out recently for some massive vet bills). Holidays tend to be staying with family/friends with only travel costs; I just can't afford to spend a few grand on a holiday abroad, as much as I'd like to. It will be better once loan is paid off.
I know where my luxuries are and where I could make cuts if I wanted/needed to. I don't scrimp on groceries and we have a lot of non essentials in there.
I make good use of 0% finance, and other than the car loan and mortgage I've never paid a penny in interest, despite having thousands on cards/purchase plans over the years.
The main stand out thing for me in terms of your finances is your mortgage payment 😱 I do dream of moving to a bigger house but financially it just wouldn't be doable at the moment.