The simplest and most important idea is that money is a medium of exchange. And you need to treat them accordingly. Note that wealthy people have a slightly different attitude to money. First, they know how they get paid. Secondly, they know how to manage large sums and become immune to the temptation of money.
Don't go into debt. Most well-known entrepreneurs recognize that credit is the last thing. Trying to get by with your own funds is the best solution. If you still had to take out a loan, you should repay it as soon as possible. Principle: paid and calmed down. This also applies to payment of bills.
Define your goals for money correctly. When receiving a certain amount, think in advance what they are intended for. For example, part for entertainment, part for life, part to pay bills, part remains free. It is also a good idea to create a certain savings account with interest.
Luxury doesn't always mean quality. Ever wondered why creators Warren Buffett and Ikea look middle-class. Most likely, because they do not follow the stereotype that wealthy people should look somehow special. Their environment is already aware of how rich they are. Scandalous and flashy purchases are mostly silly ways to get public attention. Therefore, before buying another product, you should think about it. Perhaps this item (of no less quality) can be purchased at a lower cost. And this applies to everything: clothes, household appliances, cars, etc.
The black day will come. No matter how wealthy a person is, almost everyone has material problems. Unforeseen expenses can come up on their own. Things get broken, lost or stolen. The best alternative to no savings at all is a certain financial safety cushion. By learning how to save money, it will be easier in the future to survive a personal financial crisis or save up for something big.
Know exactly the waste and the balance. Writing down income and expenses is a symbol of prosperity. Thus, you can visually track the waste, sometimes, by the way, unreasonable. In this case, the eternal question: "Where does the money go?" will become irrelevant.
Part-time job. It is this type of earnings that will never leave you without a penny. Let it not be a lot of money. It is worth learning at least one skill that can help in difficult times.
Limits and restrictions. Many have had moments when the thought arises in their heads that they deserve something. Performing a difficult job, a difficult task, a successful way out of the situation. In a word, I deserve it. At this point, instead of setting a limit, there is confidence: money is needed to spend it. It is necessary in such cases to learn how to set limits. Of course, sometimes you can pamper yourself. Note: the key word is sometimes.