There are two converse adages: “No one on their deathbed ever wished they spent one more day at work”, and “If you love what you do, you’ll never have to work a day in your life.”
Entrepreneurship can take it’s toll. There’s no way to get everything done on time and the work is never done. There’s never enough money. Being your own boss doesn’t mean you get more time off.
I think that’s why Guy Kawasaki talks about “making meaning”. If it’s just about money, check your motives. The odds are against the multimillion dollar exit. Better to make a difference.