My clutch seems to be very stiff. no matter what I do it is always very stiff any suggestions???

I am getting a left leg like arnie

SOME OF THE EARLIER PORSCHES HAD A RUBBER COUPLING ON THE CLUTCH DISC AND WHEN IT GETS OLD IT BRAKES IN PIECES AND SOME TIMES GETS STUCK IN THE PRESSURE PLATE AND THAN THE PEDAL GETS HARD.GOOD LUCK,DAVE