Not to be negative, but what when you work more? I hate these kind of statements... . I have been through this. I NEVER only worked 40h in my day jobs... . No matter what "level" As a call center agent I had to do 9h shifts, plus add ca. 15- 30 min min of overtime per day. Plus 1h commute each way (which is common). That's ca. 11-12h out of the house. And not everyone can power through months of sleeping only 4-6h / night. I was only able to build sth on the side once I moved up the career ladder and then could reduce working hours (which wasn't possible before due to the low pay).