If any trade makes you feel like “kicking yourself,” then you’re likely trading for emotional satisfaction and that’s a problem. In other words, if every trade you make has the purpose of trying to make you feel good, prove you are right, feed your ego, eliminate pain from a prior mistake you refused to deal with early on, or something other than just making money for you, you need to learn how to put trading in the proper frame of mind if you desire to become a better trader and investor.