That’s 100% true. After a certain point, I migrated from using my “bills” checking account for everything to using a credit card with cash back rewards, and paying that off every pay period rather than using the checking account. But, that is only useful advice if you are already out of debt - if you’re carrying a balance on your credit card, rewards are likely not going to out pace your interest accumulation. It’s also a good idea to try to fit in as much savings as you can - any little bit in a money market account making you money is a good thing, and invaluable when an emergency comes up. But again, that is very very dependent on your financial situation, and may not be realistic to many people.
I’m glad to read that! I hope it helps. I would also recommend joining a credit union if you’re eligible and not already a member. They will typically have much better rates and lower fees on various services. Also, doing this math can be depressing - I remember having weeks where I had like $30 to cover gas and food. If you find yourself in that situation, dried beans and a second-hand pressure cooker are a much healthier alternative to the usual ramen packets.