Ok you probably have a leaking slave cylinder/hydraulic throwout bearing.The bearing pushes against the pressure plate to engage and disengage the clutch disc. The disc is most likely worn down and slipping.when you replace the clutch you replace the clutch as a kit with the pressure plate,clutch disc and the slave cylinder will come seperately on this model and need to be bled. You will need to remove the transmission to gain access to the clutch which is alot of work. The flywheel should be resurfaced if it looks in rough shape. The pilot bearing will come with the clutch if it is a complete kit.
My recommendation for a complete how to on removing the trans and the clutch is to go to www.autozone.com and registering for free, they have a full selection of online repair guides that give you step by step instructions. You should have a 4.0 liter engine not a 3.0 on a 94 model.