How can I improve my speaking?

This also happens to me, my listening is better than my reading and speaking... I think I'm shy and sometimes I can't try to speak with myself and with some friends... I always forget everything when I'm trying to have a conversation or chat with someone who tries to help me... Really I don't know how I can improve my speaking specially because I can't get leave my shamed side. I've tried to help myself doing exercises, studying and trying talk to people and talk in front of my mirror everyday kkk"... But always in the end I'm so nervous... I'm not finding the best to way how to cope with it... If someone here has other way to train yourself please gimme the tip.

**I've studied english since this february,2010, despite this, I like so much grammar and I can write some phrases and build up some texts. My future depends on how I can learn english quickly...

Thanks in advance...