So I took a bike mechanics workshop as a beginner....It was a free class...and we whizzed through everything pretty fast...Anyways...I finished my bike, however the fork seems to be loose inside the stem. When I tightened everything up and installed another washer....it wasn't loose anymore but it was so tight I could hardly steer the wheel....Help me!!! I can't seem to find a happy medium...Its an old frame, stem, but the headset is brand new (and threaded)...I don't think that I need to grease anything up because its brand new...what am I doing wrong?