Life is short ... and you should live your life today as if tomorrow you're going to die. That's a lesson my father told me when I was a little kid. Don't hesitate to do want you want. Go for it today and don't wait untill tomorrow. Because in the end, you'll always regret the things you would have wanted to do so desperate, but you'll almost never regret the things you did.
Exactly my thoughts, except it's so much easier to let this float in your head and it is much harder to actually get into the real action.