How to overcome SHYNESS and gain CONFIDENCE in a short time?

I'm afraid for being in middle of attention. I'm too shy to speak up and too shy to talk in front of the class or crowd. When I do, I always just froze and mind blank. And I just want to cry on the spot. Is a stressful and depress feeling. I heard of "You Only Live Once" quote, but I just... show more I'm afraid for being in middle of attention.
I'm too shy to speak up and too shy to talk in front of the class or crowd.
When I do, I always just froze and mind blank. And I just want to cry on the spot.
Is a stressful and depress feeling.
I heard of "You Only Live Once" quote, but I just can't go with it.
I cry very easily, VERY EASY. :'(
FengShui said that a mole under the eye (on eye bag) is a crying mole. And I have it.

Any ways or tips to help me?

How to speak up?
How to have courage?
How to be confidence?
How to throw shyness away?
How to control tears?

In a short time, is it possible?

No rude comments please :[
Update: EDIT: Ok, take the "short time" away. :]
6 answers 6