drizzay

I have a 97 4runner 5 speed and when starting my car in first gear it starts to rev high and starts to drive on its own while the clutch is still being pushed in, also if I start it in first and hold the clutch and push the break it revs high then dies out....basicly the clutch is engaging on its own when ever it is in a gear. also I get trouble putting it back into first gear whenever I put it in neutral....all these symptoms also happens in reverse.. any help would be good.