Elizabeth,
My dog quincy was potty trained by the time he was 5 months old.
what i did was take him outside every hour for the first couple of days,and after that i would keep him blocked off in the kitchen while i was at work.he would poop and pee in the kitchen at night. i work midnights but when i would come home in the mornings i would take him out right away and when he would go potty i praised hm so much the neighbors probly think i'm crazy.when he would rome the house though i would like i said take him out every hour and he never had a chance to pee in the rest of the house i would take him out too soon he never had a chance to have an accident so i believe he got potty trained so quickly by me praising him so much when he would go where he was supposed too which was outside
i would also give him a small treat as a reward along with the praise i hope this helps you some sorry for the long message
linda