People...

Gabriella
There are people we just can't stand. I am constantly working with a girl I just can't stand. Hardly anyone else knows. 
I've blown up at her maybe once or twice because I just can't stand her. 
I know it's wrong to hate or yell at her, but I don't know what I should do about it.
Are there any tips you may have that could help me calm my anger towards her?