My transmission slip and then got stuck do i need a clutch or transmission on 1999 Honda Civic Si

Sometimes when i drove forward it was sounding like i was driving in reverse. And when i take off to drive in first gear it will act up like it didnt want to take off then when it grip the car will drive.

Asked by for the 1999 Honda Civic Si
sounds like the clutch is slipping badly. how many miles on clutch assm