Why it is beneficial to be angry

Have you ever had a goal or dream in life that you badly wanted to achieve, yet couldn't because you weren't motivated enough?  Well, my answer to that is "you lacked anger".  You see, our society labels anger  as a "negative" trait but I think it has deeply benefited us in a evolutionary sense.  Why? It has helped motivate us to push our limits when things are clearly wrong in our lives.  If you know how to channel that anger effectively then you can eliminate those fears you have about pursuing your dreams.  Just remember to keep things in perspective and don't start hating on someone for the sake of hating on them.  Instead, create a boogeyman (fear) for yourself and use your anger to take down that boogeyman.  The feeling is great when you can eliminate those fears.