Make a budget. Live by that budget for a month. On the first of the next month, make another budget.

You don’t actually have to do this forever, but long enough to get the basic ebb and flow of money into your head. Planning to put more into x category means having less for y category.

Build up savings, a little at a time. Get used to dipping into that for emergencies.

Disregard if you’re a billionaire or entirely living off the land.