I have long since over-thought nearly everything in my life—every action, every detail, every emotion, every hypothetical possibility. I believe this habit to be ingrained in me, both as a result of nurture as well as circumstance. Our experiences create the bulk of who we are, and reinforcement just nails those traits deeper into our being. At its best, over-thinking helps me to be good at—well--what I am good at. I notice the smallest of details. I ponder options. I am studious and thorough. I can evaluate and come up with better solutions to almost anything. I’m reliable and stay on top of things. But, at its worst, over-thinking usually causes me to second guess myself, and it holds me back. Essentially, it costs me.