I'm having extreme difficulty following a rhythm using a metronome. Granted, I can't sightread yet so that may be the problem. Trying to play a piece I know very well by ear and matching it with the metronome beats (in any tempo) is incredibly hard for me, the offbeat notes keep escaping me, as if I was concentrating more on the actual metronome than the piece.

Am I using the metronome in an incorrect manner?