Anecdotal, my former room mate is a Graphics Designer. They are fairly successful now, but have been struggling with their business for a decade before they got where they are. And still have tremendous debt to pay off (both business and school). They work twelve hours a day. Often works on the weekend as well. Plus they have a teaching gig now at heir former college. Along with the occasional exhibition for their art.

They’ve burnt out at least twice along the way. Both times it has cost them their relationship. But I have tremendous respect for them for doing the level of hustle that you’d expect from a wallstreet stockbroker on speed or coke.