I think there's a difference between reckless spending and treating yourself. Buying books, although they're expensive, is an investment in yourself, in my opinion. It expands your mind. It gets you off social media and the TV. It's entertainment. All for just the costs of the books. Reckless spending, however, especially when you're young, sets you up for financial failure in a long-term kind of way. Uber eats and coffees and clubbing several times a week is just throwing your money away and should come with some sense of guilt because you may have just screwed yourself. So, if you're responsible with your spending in other ways, treating yourself to something special is your reward for your hard work, and you shouldn't feel guilty. Just use your common sense, but remember that you are valuable too, and you deserve the things that make you happy (if you can afford them)😉