Is It Possible To Reduce My Three Year Driving Ban?

Hello Everyone. I am currently into the tenth month of a three year ban for failing to provide a specimen for analysis charge. Before this five years ago i was banned for two years for Drink driving [reduced six months to one half years after i completed a DD course] Can i somehow try after a period of time to get my current ban reduced ? At present i am at college and am in the final year of becoming a tree surgeon. When i finish i would need to drive to get to jobs. I know what i have done is incredibly stupid, i have learnt my lesson the hard way - and to be honest i should have learnt this the first time around.