The anger is normal and necessary, feel it, and then feel through it...then let it go. Don't let it consume you, or cloud your judgement...express your anger safely and privately...keep your goal and big picture in mind.
You'll be glad you did, for you.
T^2
In the depths of winter, I finally learned that within me there lay an invincible summer. - Albert Camus
Uncertainty is the very condition which impels people to unfold their powers.-Eric Fromm