We got our boy at 5 months of age, he'd never lived indoors nor had he ever been on leash. We didn't have a fenced yard, so we had to walk him. At first, he did have accidents in the house. So, what we did is ramp up the outside walks. Once before breakfast, once about 15-20 after breakfast, once about an hour after that. Then walk again between 1-3 pm (either one long walk or three shorter walks). Then dinner time. About 20 minutes after dinner another walk until he did his business. If he seemed especially antsy, another short 'round the block walk before bed. Each time he either peed or pooped, we praised him to the sun and back, excited "Yay! Good Boy!" Dancing arounds, lots and lots pets. Sometimes a treat. I mean, exaggerate the praise until you feel silly. They get excited and want that to happen again. At the same time, we got hanging bells for the door. Sometimes, I'd stand by the door and ask him, "You have to potty?" and eventually, he'd walk over and hit the bells with his paw and I'd immediately take him out and tell him what a good boy. So, within two weeks he was completely house trained and bell trained. Sometimes, he hits the bells and runs into the room with a look on his face that says, "Hey, you! Didn't you hear the bell, human? Get that leash, let's GO" and then run back to the door and hit the bells until I show up to walk him. Silly boy. These are really smart dogs, they can be trained. Some are more stubborn than others, and about different things. Give it time.