@jesussaves7763 I have a few.
I rent instead of owning, despite being mid-30s and having decent money. Interest rates are too high, and when they were lower, we just weren't in a position to put down roots. We moved 3 times in 5 years, each time for better opportunities. I went from earning 88k to 190k. Looking at Zillow, a mortgage on my current apartment would likely cost me 2k more per month than my rent.
I spend the money in my HSA. I know some people advocate investing that money, saving the receipts, and only getting the money out in retirement or something. While this is reasonable, I think one can go overboard in taking care of the Future You and neglecting Current You. For me, I have a lot of health problems. I'm often hitting the max out of pocket thing in January or February. I just don't want to absorb a 3k bill for this or that and wait 30 years to get the money. So, I pay for the medical expense on my credit card, get the cc points, immediately reimburse myself through the HSA, and then pay off the card.
Last one: my husband and I both went to college to study humanities. Lots of people poo poo that. But it worked for us. (It actually works for a lot of people if one looks at the numbers, but I don't wanna get political.) Neither of us came from rich families, so we didn't take this path knowing that we had a trust fund or something as a fallback. Instead, we pursued what we were interested in and thought we could excel in. Today, both of us have jobs doing exactly what we hoped to do when we were 20, and we use those degrees everyday. And we can pay the bills, as we're solidly upper middle class.