Nclex rn study advice

Hello everyone, it's been 10 years i graduate from nursing school from india .. I did general nursing midwifery diploma for 3 and half years ..after that i moved to USA and got marid here.. Didn't got chance to study.once i started nclex rn review course in cleveland OH in 2012 but then i stopped right after couple months bcoz of my daughter..now i'm getting behind day by day from my dream..and totally have no connection with my study forget my most of the stuff from nursing school.. Please give me advice how i can study or how i can make plans for study.and how long i need to study for nclex rn.. Already have my ATT still eligible for 15 months from now.. Thanx everyone.. Please reply need help!!