If you define luck as the happening of an event that the probability of not happening is greater than the probability of happening. Then all depends on how well you can calculate your probabilities of success and how much risk you want to take.
Of course you can't be 100% sure that you are going to be successful. But you must try to increase your probabilities as much as you can, trying to predict your probabilities as accurate as you can.
As Laplace said: "Life's most important questions are, for the most part, nothing but probability problems".
Of course you can't be 100% sure that you are going to be successful. But you must try to increase your probabilities as much as you can, trying to predict your probabilities as accurate as you can.
As Laplace said: "Life's most important questions are, for the most part, nothing but probability problems".