For those in this position, curious as to whether you stumbled into it by serendipity, or whether you knew ahead of time and planned it.
I was a teacher, and loved it. I miss it, and may go back someday (there's just other stuff I want to do for now).
I stumbled on it, signed up for Teach For America out of college, an AmeriCorps program to place high performing college students in low-income classrooms with the hope of 1) Closing the achievement gap, 2) Getting those people, even after they stop teaching (it's a two year commitment, and many don't stay), to be lifelong advocates for education and the disadvantaged (whether they become a doctor, lawyer, politician, etc.).
I was planning on just doing the two years, then moving on to other things (law school or business school, most likely). Many who knew me were disappointed when I decided to stay and "just" be a teacher ("wasting potential" in their eyes). But I loved it.
how did you come to realize that this was the "right" job for you?
One day pretty early on I was sick. I called into the system for a sub, and then went by my school early to write sub plans for the day and prepare the materials they'd need. Once I got there, I started getting excited for the day's lessons, and went "I'm not THAT sick... I can stay" because I just
wanted to be there. I had a paid professional coming in to take over for the day, plenty of sick days, and was actually sick, yet I wanted to be at my job.
I, of course, forced myself to go home so I wouldn't get anyone else sick, but that was when I knew I should keep teaching.