Hi Yelloowfever,

before i had my traing I was alot like you.Everything bothered me,always processing old acts and fearful of the future acts.
I will break this down according to what you have said and add some spots that can help you.
Your boss and everyone around you is outerenviroment and we can;t control any of it.

people do things that annoy us not meaning to annoy us

your boss is his or her own average not right or wrong

nervous people are good observors but poor interpreters

Excuse rather than accuse for your mental health

It only matters what you think not what others think

Do a good average job avoid trying to be exceptional.

The crying habit is just a habit

feelings arnt facts

the will says yes or no

symptoms are distressing but not dangerous

temper has alot of feeling but not much force

expect frustrations and irrations and you wont be disappointed

try,fail,try again and again

Endorse for all your efforts. Going to work shows you have determination and a strong will. What you lack is proper instruction.

Control over the inner enviroment is far more important than a victory over the outerenviroment.

You will get well and stay that way