My worst habit is second guessing myself. Although I've worked in the same field, yet different capacities, for 23 years and sometimes I still don't know how up-to-date my techniques are. But then I remember that I am teaching people varying stages of how to see and understand the same material, and along side them I am also learning the newest data and details of our industry.
As Socrates said, "One can not be a teacher, if they cease to be a student."
