I'm only 21 and joined the space around three years ago with a 40h work week (no more than 40 hours). The first thing I realized not even three years in: I value time so much more than money. How should I enjoy the good income I make when I'm just working?

That being said, as a software engineer you're usually well above the median income for your age, so sacrificing a cut of your income for a better work life balance is a lot easier than for people who can barely support their families.