Definitely you are not alone.
My daughter had anxiety so bad she no longer teaches. Having been her "rock" for several years I've seen the result of stress in your profession.
According to her at the time some of the issues were
- Doing work for other teachers
- Dealing with parents
- Taking work home
My anxiety peaked in 1987 and I eliminated it by 2012 , fully. That's a long time but there is a number of things that made significant impact early on-
- Had therapy to get issues into proper perspective
- Appropriate medication initially
- Lifestyle changes eg move to the country
- Relaxation techniques
I've listed some threads that can help. Please google and read the first post of each
Beyondblue topic anxiety, how I eliminated it
Beyondblue topic meditation, maharaji he helped me for 25 years
Beyondblue topic worry worry worry