For me it had a lot to do with ankle flexibility, or lack thereof. I was able to solve the problem by using proper weightlifting shoes, which have a slightly elevated heel. This eliminates the need for plates under the heels.
Great advice. When I have insecure, negative thoughts or anxiety in my head, I find that it helps if I conscientiously tell them to "Get the fuck out of my head." Sounds kind of funny but it works.
Also, I have the following quote printed out and look at it often. It reminds me to always step...