If you want to improve quickly you could pay out for some extra tuition with an instructor - they can talk you through with intercom, or a cheaper option (would take alot longer) would be to join EAMG (Essex Avanced Motorcyle Group) you ride out with an observer regularly (no intercoms though) they debrief you throughout each rideout and gradually you learn and improve that way. Either way you learn how to read bends, how to position the bike etc, before you get in any bad habits.
I joined EAMG and was almost about to take my test when I had to stop riding

. My riding improved so much I even managed to impress hubby!!