Why does my 1994 Ford Escort stays accelerated when i turn it on?

IDLE SPEED COMPENSATOR (ISC) STICKING, THROTTLE CABLE BINDNG, THROTTLE PLATE STICKING,VACUUM LEAK, FOREIGN OBJECT HITTING GAS PEDAL IE. FLOOR MAT ECT, OR EVEN SOMETHING ELSE! REALLY NEED TO HAVE IT CHECKED BY A MECHANIC THAT CAN ACTUALLY SEE THE ENGINE. HARD TO SAY FOR SURE FROM HERE.