can clutch be adjusted. on 1996 Chevrolet Cavalier

clutch is slipping can it be adjusted are do i have to replace.

Asked by for the 1996 Chevrolet Cavalier
The clutch is operated by a hydraulic clutch master and slave cylinder which has no provision to be adjusted. My labor guide shows it takes about 6 hours to replace the clutch components.
But if you hold the clutch down and you have problems getting into gears then wat could be the problem?