Football is a game of speed and drama.
It's always boiled down to the quality of your music and the quality of your deal with whoever's distributing your music: There are artists who sold a lot of records and didn't make money because of their deal, and artists who didn't sell nearly as much who made a great living because they own their masters.
You learn so much about yourself as an artist. I never would have thought that I could sing every night, you know? Travel and perform every single night, and travel to another city the next day and do it all over again? You learn a lot of new things about yourself, and you make a lot of connections with people.