EGO is running my life, need help?

it's bad!!!! i have such an inflated false sense of self..... it seems as if i am constantly living in fear or in anger. very rarely am i at peace and content. it seems like even when i'm having a really good happy day that it's still driven by EGO. cuz then i go into thoughts like: "i am the MAN, don't people know who I AM?!?!?!?!" etc. i find that whenever i have to do public speaking i get PETRIFIED and i know it's my ego. i've become aware of it to the point that i can hear the "voice" in the head speaking to me (eckhart tolle stuff). saying: "you will mess up.... yer to young, these people will not like what you say...... blah blah blah" I guess i'm quite educated on EGO and what it is but have NO clue how to achieve it's opposite.... which is peace. any help would be greatly appreciated.