Working as A Teacher

I hanged out with my friends last Saturday and Sunday.
At that time, I didn’t need to be a teacher.
That means I could be just the way I was.
However, at the school, it is required to be a teacher in order to educate the students.
Behaving as a teacher is different from the way I am outside school.
This is because I feel stressed during work, but it cannot be helped to earn money.
If possible, I want to start my own business which enables me to do anything in my own way.
When I take a look at the point, working at school may not a good option.