When I was a senior in high school I decided to be a teacher. When I was a freshman in college I decided to teach elementary school. I haven't yet ruled out the possibility that I will teach high school some day, but I know that I made the right career choice.
My job is so stressful. I'm not kidding. Somedays I hope that no one over the age of eleven will even speak to me. I spend personal time and money on making things the best I possibly can for my fifth grade students. Doesn't matter, because I love them and my job is fulfilling.
Seriously. I get up and want to go to work in the morning. Now, don't confuse me and think I mean that I never want to stay in my bed because I'm exhausted. I love staying in my bed. I enjoy the days I get to sleep in. But I never leave my job and think how much I hate it. And school is the only thing that's awesome.
When I'm stressed and/or my life is in disarray, school is the only time I can let go and be happy. Right now pretty much all the things in my life are a big freaking disaster and I cry all the days, but school is great. My kids make me legitimately happy even when they're being brats.
And THAT is how you know you chose the right career path. When your job is the part of the day you love the most, that's what you should be doing.
No fanfare. The end.