You might try:
Immediately after each of your opponent's moves, ask yourself: "What's the threat?" Then look for everything that he might be trying to do.
Immediately before each of your own moves, ask yourself the Marathon Man question: "Is it safe?" Then look for every opportunity that your proposed move might give him.
I find that when I see an opening, I get excited and make an aggressive move that many times seems to backfire on me. I seem to fail at properly defending myself before I become offensive, which many times makes me hesitant. Does anybody else run into this dilemna?
I'd love some feedback.