I am pretty sure I already know the answer to this, but I want to get the experts opinion.

Recently when I was on the highway in 6th I tried to accelerate, but my RPMs just climbed super fast and then finally caught. It definently feels like something in the drivetrain is slipping. I don't have a problem getting the car into gear at all. It's just while cruising. I have had a JWT clutch/flywheel combo for about 30K miles. Is it just time for me to replace the clutch and pressure plate on the flywheel?