I am very careful with my money. I save more than I spend tbh. I don't really like spending money. I like to save up and have it in case I really need it. It's difficult to do so, but I try not to spend unless I need to.
I don't really care much about money because I'm still living under my parents (I'm 17). They supply everything I need in order to survive. That's pretty much all I need. I have some personal money, but I never use them nowadays because I don't have anything else in particular that I really need.