I read an interesting psychology article about so-called "luck" (via Lifehacker). A UK psychologist studied "lucky" versus "unlucky" people. I wouldn't call it luck, but rather a good attitude and a positive, optimistic attitude. According to the results of the study, having those things make you more open to new possibilities and opportunities.
Again from Lifehacker, I found this poetic image entitled "When faced with two choices." It reads "When faced with two choices, simply toss a coin. It works not because it settles the question for you. But because in that brief moment when the coin is in the air, you suddenly know what you were hoping for." I interpret this as: if you are having a hard time making a choice, force yourself to make a decision in a split second. Then you'll go with your intuition and feelings.