how  to  improve english  into  a high level

i  am  a english major college student ..but now i've graduated from my college school and i find i cannot  speak out a word ,when i try to talk with others.i know my english is poor, but now  i don't know how to improve  it except  imtate the record and talk with some chinese who also like english very much... Is anyone who can give me some good advices?..thx..

说：听的时间大约2：1.
到后期口语不错了可以
说：听的时间为1：n（n随便你啦）

Why you use so simple words to show you. realy Chinglish!
Compare your sounds recorded with voice from CNN. you may find out the difference.