Learning to Let Go

I have been very pissed off with my work situation as of late, and it has been making me very unhappy. Even though I am justified in my reasons for being angry, I have only been hurting myself by wearing the weight of that anger in my facial expressions, body language, and general attitude toward the people I work with. My main complaint is with my boss. I absolutely can't stand the woman. I don't think I have ever felt such strong negative emotions (i.e. hate) like this toward anyone before. She is a cold, uncaring, micromanager with terrible administrative skills who knows virtually nothing about running an educational institution and whose only concern is making money. She doesn't care if she has her employees work overtime, after teaching and discipling students for a full day to do work that could be, and ought to be done during the course of the work day . She thinks it's okay to schedule a meeting for Saturday afternoon at 2pm, in the middle of the day and tell everybody about it on Thursday night and expect everybody to drop their plans and come. She finds no fault on running an English hogwan with a kindergarten without investing in an adequate supply of children's books and songs in English, and thinks it's just fine to accuse a teacher of being unprepared or boring in the classroom when there were not enough materials provided in the first place. My experience at Letter and Sound Academy has been nothing but frustrating. But I am in the homestretch, so I just have to breathe, relax, and smile.