There are classes at the Leadmill for teenagers of all levels on Tuesday and Thursday 4:30 til 7:00 with MC Nige as part of the AMP project (so free!). Alternatively, Nightmares On Lino (Sheffield Hallam) train on Broomgrove Road and teach classes to all levels every week. These sessions are changing about a bit at the mo so contact Nate Dogg at email@example.com
and he'll sort you out. You'll be windmilling within months!!