I am 23 years of age and I am suffering from speech problem since a long time.To be true i stammer while pronouncing words or sentences which begins with A,I SP M,K. I try to slow my speech down but still its not working.When i am talking to myself i can easily pronounce the words which begins with A I,S M P,K but when i am talking to someome i get nervous and i stammer that time. Actually when i get nervous i even slightly stammer pronouncing the words which i normally speak properly. Please suggest me how can i cure myself.