teaching: not for the faint of heart

I have been thinking a lot lately about teaching. I plan to be a teacher, and on some level have long known this was my "calling". I recently found out that next semester I will have the opportunity to try my hand at teaching at the college level for the first time. It seems that a trial by fire of English grad students is the norm for out second year of grad work. Upon hearing this news I was at once seized by feelings of both intense fear and excitement, not unlike what one might experience right before mounting at particularly daunting roller coaster. I wonder if I will find myself to be completely inadequate to the task of communicating these subjects that I am so passionate about. I wonder if my students will hate my teaching style. I wonder; who am I to think that I know enough to TEACH adults anything?! I have waited many years for this moment, and as it approaches, I find myself much more sympathetic to the teachers I have over the years labeled as "bad", "boring", or "dumb". May my students have more mercy and patience with me than I have had with some of my past teachers.