I have four part time jobs with 90%-100% flexibility (two jobs require a minimum of five hours a week, two have no minimum requirements).
I can decide if I work morning or evening, or not at all. I make a minimum of 14$ and a maximum of 25$ an hour. I can decide I'm sick of one job for a week or two and then work full time at that job for the next week or two. I take vacation when I need, schedule my work around my life and not the opposite and in general, i'm just happy with how much I have control over my life.
For all the curious people among you: I work as a delivery person, a teacher sub and a coordinator of a little youth movement in my area. I make around 2,000$-2,500$ on months where I work a lot and 1,500$-2,000$ when I want to take it easy. I'm privileged to live in a country that provides full healthcare and employers are required by law to put money in their workers pension fund. I'm not rich but I'm not as miserable as I was when I worked a 9-5 for stupid low pay.