You can and should make money on your days off.
Unless you are already independently wealthy.
I kept money in the family by paying my cousin to cut my wife’s hair. This is an economic rule most ignore.
Second, I made 300 dollars in an hour today, my day off which is more than I make at my day job.
I love my job, not quitting, but I do dig making extra loot 😉
Look for money, it will find you.