Overcoming drug addictions could be a very complicated process but not impossible.This step-by-step guide can help you cope with cravings, deal with relapses, and overcome your substance use disorders. About 270 million people (5.5% of the global population aged 15-64) had used psychoactive drugs in the previous year and about 35 million people are estimated to be affected by drug use disorder (Harmful Pattern Of Drug Use.)