Hello young lady.At 18 I wasn't even working, I was dependent on my parents. Hats off to you, you started working so young. It takes lot of courage to take criticism daily.
Having said that any thought of self harm is a sign of depression .pls visit a psychiatrist or psychologist.
You may need medicines for your anxiety .
You are young, it is obvious that you are in learning stage for many many things in life.
Take criticism and stress as a learning experience .
Answered2017-09-10 16:44:07
Let others know if this answer was helpful