Oh boy buddy, pray you don't have to go through what I did. What you need to do, is like shoofly said, check your master, and your slave cylinder for leakage... if you can see some moisture around either... get them changed fast before your clutch gets ruined. (I SAW NO MOISTURE, yet my master was shot when i took it out)

Otherwise, bleed your clutch, you could have air in the line, and that could cause your clutch to engage lower... but if you have air in the line, chances are one of the cylinders is gone.

Next, if bleeding doesn't help, and EVEN IF YOU DON'T SEE MOISTURE... get your clutch master and slave changed. Parts are like $100 for both and I did it myself, so I don't know what labor is...

That should take care of it no matter what... UNLESS YOU'RE STUPID LIKE ME, and waited so long, that you chip a piece off of your clutch plate and it ruins your new clutch and flywheel!!!! AAAAHHHH!!!

Don't wait to check your cylinders... or change them... if all else fails, just change the cylinders, it's the most likely and least costly option.

Hope it works out...
JackO