Oh I had doubts up until my 3rd year of teaching! I kept hearing over and over again how that u need patience for this kind of job. I used to have a bad temper in my 20s and I would lose it over little and stupid things so I was worried about not having the patience for it. However, I kept on with my studies with those doubts. The first 2 years of teaching was the hardest cuz I was so overwhelmed and I wasnt sure if I was doing the right thing cuz I didnt have any experience working with children who were delayed but once I learned my style of teaching, the doubts disappeared. Yes, I still make mistakes and I am always finding ways to improve myself.
With teaching, it was always said if u are still overwhelmed and stressed out constantly by your 5th year, it is probably not the right career for you.
It seems that the job taught me to have more patience rather than teaching me to lose it more frequently. It was interesting.
I dont dread going to work..it doesnt feel like a job. I go because I look forward to it. 
FYI..yes there are days when I dont feel like teaching..LOL!
About stopping college while working...I did that cuz after my 2nd year of college, I didnt know what I wanted to do. That was wayyy before I did volunteer work at PDSD. I got a full time job at an insurance company to see if the office environment suited me while doing volunteer work at different places after work or during the weekend. After 3 years of working for the insurance company, I knew that sitting on my butt all day doing repeative work wasnt my style so I went back to school full time. That was before I had kids so if u dont have kids, grab the opportunity to do volunteer work at different kinds of places. Maybe u can discover your kind of career that way.
I wish I did some volunteering in high school but I was too involved with sports.
