I like the start of the semester--but in some ways I dread it as well. It's a fresh start, and a scary beginning.
I always deal with the "What if I can't teach them in a way they will understand?" "What if they have poor attitudes?" "What if they don't like me or my teaching style?" "How can I convince them that this information is important and that I have spent hours preparing it?"
I know this is an inward battle--but I do want my students to know how hard I work for them, how much I care for them personally and academically, and that there is a method to the madness of college work.
I'm still learning how to do this with college students. . .