I enjoyed this TEDx talk from Larry Smith called Why you will fail to have a great career. It is very inspirational in a counter-intuitive way. Check it out and then check your assumptions and beliefs that will help or hinder your success and satisfaction.The times where we "go for it" will be those we remember the most because they are the times when we fully use our potential.
Courage and gumption and passion launch things. Resoluteness fuels continued progress.
I have come to believe that success is more like a marathon and less like playing the lottery - and yet more of us are buying and scratching then we are training in the rain (present company included at times - happy to say I feel more on track, pun intended, these days).
And by the way, I don't think there is only one shot that we get. Most of us have already passed up several pivotal opportunities. But another will present itself - or you will seek it - tomorrow. Will you be ready? Willing? You are able.
Enjoy the TEDx talk from a fellow Canadian - I like his sarcastic humor!