Mixed Feelings

Do you ever have a hard time figuring out what God is telling you to do? Usually I am pretty good at hearing what God is saying, but I am torn. I don't know what He is telling me to do. I made a decision, and at the time I was positive God wanted me to do it. But now I feel as though He is telling me to do the opposite, and I am quite confused. Did I do the wrong thing? Was God really telling me to make that decision, or did I make it out of hurt feelings, anger,and bitterness? Is He really telling me to change that decision, or am I feeling the desire to change it because I miss the way things were? What is the right decision? And why can't I seem to "hear" God? Am I not listening hard enough?