You may not be the best at what you do- you may not even be the 2nd, 3rd, 4th, or 5th best- but you've got to love whatever it is. And if you don't love it, or if you can't be the best, you can always drink.
I once asked a compulsive gambler why he wouldn't rather drop his coins in Time Crisis, as it offered a less lucrative but far more predictable payout than slots. Noting that I spent all my cash on alcohol, he rejoindered that at least on some nights he'd actually win. No, no, I corrected him, when I drink I always win. Soda Popinksi understood this.