Sometimes, the advise is to go for it, to leave it all on the line. In many cases, it is the right advice. If an opportunity comes along, and you grab it with both hands, it could be the one key thing that differentiates you, and makes all the hard work pay off.
What’s often forgotten is that, to strike when the iron is hot, you have to be prepared. And that comes from working on your craft consistently, plodding along on good days and bad days.