It’s that simple.
If you don’t have enough of your own money, you work for other people.
Shareholders, customers, banks.
It’s only on the day where you have enough money of your own that you can say you don’t work for other people.
Until that day, suck it up.
Return those calls, go to those meetings, don’t complain.
Just keep making money until you have enough money to not have to do what what you don’t want to do.