how did you balance college/school/etc work with drawing on your free time?

for people who have a different field of study/work other than art, how did you incorporate drawing and art into your routine?

did you draw for an hour or two after a long day or during your breaks/free time? did you draw everyday or weekly? did you usually just look at art online/in books for inspiration on busy work days where you arent able to draw as much?

and was it a "serious" hobby for you, i.e. did you take it seriously while balancing work/school and devote more time for it than for a usual leisure hobby? and did you ever end up monetizing it along the way or did it maintain a serious hobby for self-improvement, and was it worth it?