Side hustle as a consultant finally paying off

Started doing freelance work for an old client about 18 months ago, just 5-10 hours a week on weekends. Hit $15k revenue last month. It's not replacing my main job but it's giving me optionality—like if I need to step back from full-time, I have some income cushion. Plus it's something that's mine, you know? Not corporate stuff, just work I actually care about. For the dads thinking about this—it takes discipline to not let it consume your family time, but it's worth exploring.