clutch and spedometer problem

i know my way around cars but this is my first manual transmission, it would always surge speed when holding a steady foot on the pedal, now tho something is making a noise that sounds like what a branch sraping the side of a car would make, i was told it was the thowout bearing but I dont know, and also my speedometer needle just started bouncing constantly which i thought was due to the worn clutch but it also bounces when the clutch pedal is down.

any tips would be awsome

mine does the same thing. my spedometer cable got bent too much and it kinda sticks. its probadly your cable i wouldnt worry. i drove mine across the country like that.

does the sound go away when you press the clutch pedal in ?