I'd really like your opinions 
Each month after all bills are paid including food/petrol/parking costs I have £850 left over.
I always feel like I have no money?! I'm always struggling to the next payday. I'm terrible with money and just spend on my debit card the week I get paid and somehow manage to leave myself short.
I spend on meals out/clothes/make up, things for the kids, drinks out etc.
I never save anything
this has to stop as I need to save for a mortgage deposit as currently renting. Also I would like have some emergency savings.
I do have a few debts but I could get rid of my two credit cards quite quickly as balances aren't too high.
So my question is do I have a good amount of disposable income? I used to think I didn't as I'm a spender and never have spare cash but reading some threads on here recently has made me think actually I do have a good disposable income compared to some people and I am just being really irresponsible with it 
Any tips on how I can cut my impulsive spending and save more?