How stop boyfriend to spend money?

We dont live together yet, but for example he got 250£ for exta hours and important client

On mon day he has dantist which is expensive af and he knew damn well he needs that money to add to another 500£ to finish his horrible teeth. what he did? that night he went to a pub with friends until 6a. m...

Treated me like shit and rude this morning because he had headache... and hangover

Then said that he is an idiot and it was self inflicted thing and its only him to blame

I mean everytime he gets some extra money he spends it... as stupid as its posible, not on useful things.

He need new shoes... im thinking to buy him ones, he never has money

But why i must think about it if its him who spends money on drinks?

Then he cries he doesn't have enough money...

I dont fucking know what to do with this situation and he gets extra rude with this topic when i try say him he shouldn't spend on that nonsense shit

How stop boyfriend to spend money?
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