Could anybody give me a few classical & contempory monlogues for a 17-25 ages?

Try passages of Shakespeare it's very hard to find modern classical. Go and check out a bookstore with a theatre books section eg. Paper One and you should be able to find books of monologues

Macbeth Act 5, scene 5, 19–28:

To-morrow, and to-morrow, and to-morrow,

Creeps in this petty pace from day to day,

To the last syllable of recorded time;

And all our yesterdays have lighted fools

The way to dusty death. Out, out, brief candle!

Life's but a walking shadow, a poor player,

That struts and frets his hour upon the stage,

And then is heard no more. It is a tale

Told by an idiot, full of sound and fury,

Signifying nothing.

Hey, who doesn't feel this way at one time or another?

Contemporary: try http://www.arthurjolly.com/monologuesM.html

Classical: Try Marlowe as well as Shakespeare. Not as "overdone" but still good.

read shakespear