welcome 2 the wonderful world of 'my left hand sucks'.. guess what?? u gotta practice twice as long with ur left as u do ur right.. it's just the way it is..
i assume u already play piano?? it should help quite a bit actually cuz ur brain has 2 learn 2 control each hand independantly, right?? same thing w/ the strings.. however u have 2 train ur muscles 2 and the only way 2 do that is to practice.. a lot..
ur left hand will def get better over time, but it's almost always gonna b ur off-hand that makes life hard.. good luck!!

