Second thoughts?

As I start to settle into the new year, I'm beginning to wonder if I am really cut out for all of this teaching stuff. I read articles and books, and think of friends that are the most amazing teachers and have such a wonderful impact on their students. I wonder if I can ever have that effect. Sometimes I feel as though I'm just trying to get through the day, instead of focusing on developing ways to truly enrich my students' lives.

I can't imagine trying to do this while having a family. My relationship is strained enough as it is. (Love you, baby. Sorry I'm such a stressed out grump lately.)

What if this isn't what I'm really meant to do with my life? What if I am a terrible teacher, and am causing my students more harm than good? What if I can't handle the stress and responsibility that this profession comes with?

Why am I having an ability crisis right now?