You only can live on adrenaline for so long; one thing is for sure, it doesn't pay the bills.
If you never try, you'll never know what you are capable of.
One moment you appear to be riding the crest of a wave, only to have the rug pulled away from you, bringing you back down to earth with a sickening thud.
Music is 10% exhilaration and 90% utter disappointment.
It's not what you play but what you leave out that makes the difference.