Vxr clutch/ floating gear box

At first I could seem the glitch burning out and I stated to loose power when accelerating so I took to a garage and he said definitely clutch, the next day on the way home lost all power and the gears where floating, the gears where doing nothing and wouldn’t even stall the car when put into gear without the clutch as it wasn’t doing anything n I could start the car in 6th n it would act like neutral any ideas?