Budgeting help

Bailie

Hey guys I have a pretty great job as a nanny I get paid 320$ a week, I’m 19, however my car just died on me so I’m getting a car for 3,200$ but only have 1,800 cause I’m horrible at saving my money...how do you guys save money and well even get in the mind set of I want that but don’t need it. Being 19 I really need to step up and act like an adult so any help possible is appreciated!