Hustle culture is bullshit pushed by corporations to keep people from getting paid what they're really owed. Working as an unpaid content monkey for a tech company like Tapas or Webtoon using "Someone has to win the lottery" thinking is dumb.
Make a comic for yourself in a way that ensures that you want to keep doing it. If you start to get some traction THEN start treating it as a 9 to 5.