I need advice-Anger

We've all heard the phrase "Don't bury your emotions, or else it'll come out in a negative way."
I mean, most overused line of basically saying "Yell at the people you hate." Right?
Wrong.
I'm the kind of person that you could clasify as the "Guy-who-does-whatever-anyone-says-and-seems-happy-about-it."
Don't worry, I don't go home and kick my cat to relieve my anger. That is why I have writing.
Anyway, back to the point.
I just really need advice.
How do you relieve anger? I'm not asking for a personal life story. Just like...I wanna avoid yelling at the people who laugh at me, but I also dont want to end up the depressed kid.
I know I am headed there anyway, I feel it.