Difficulties in Teaching...

Last night I was teaching my Sunday School class. They are high schoolers, and they had been out of school for a week, they all put off their homework until the last minute, so by the time I got to them they were all trying their best to listen...but the odds were against them.

I had a lesson I was excited about, too. I always feel like "a good teacher would still reach them" so needless to say today I'm feeling a bit frustrated with my abilities. Generally, I'm given to confidence, especially when teaching teenagers, but today I'm doubting myself.