Solid talk about teaching.
I just finished my ninth year of teaching.
9 years x ~180 school days / year = over 1600 total school days.
I can confidently say that the majority of those days (more than 1300), I went home feeling like I failed—like I failed the lesson, or one class, or one student, or one situation. And there was plenty of evidence for that feeling: students skipping, students not turning in work, students failing, students disinterested. I always felt I could have, and should have, reached each student. Somehow.
I still don’t have it figured out, but at the beginning and ending of this last year I felt like I was doing it right.