A book that changed my life, Your Money or Your Life, by Vicky Robin and Joe Dominguez, was recently re-published with some updated info. If you're the reading type, you should pick up a copy at your library. It guides you through making peace with your past, figuring out your real income and spending, tracking your savings/spending every month, thinking about expenses in terms of hours of your life, etc.

If you get an older copy, just don't take the investment advise too seriously—it's pretty out-of-date. Everything else is gold.

Another good, well-known book on the subject is the Millionaire Next Door: https://en.wikipedia.org/wiki/The_Millionaire_Next_Door

A lot of it is self control and that doesn't necessarily mean living with the least amount of money possible. It just means understanding how much you make and how much you can afford to spend.

The first step is to track your incoming / outgoing financials.

Just like programming, in order to fix the problem you need to understand what the problem is and tracking your $ for a few months will show you exactly what's going wrong.

There are plenty of resources available. The personal finance subreddit is a good place to start. If you are looking more for the wealth building side of personal finance I recommend Rich Dad, Poor Dad or Dave Ramsey to start changing your ideas about money.

https://reddit.com/r/personalfinance

research purchases extensively, comparisok shop, buy used, learn to sew and solder, cook plant-based food, exercise outdoors, value down time and low cost entertainment like board games, reading, drawing and making music.