Firstly give it time. 3 weeks is nothing.
We adopted George last year. For his entire 18 months he had been fed kitchen scraps plus dry kibble to make up the weight,
He had a long line in the garden which allowed him to do what he wanted including running to the fence and barking to get attention.
One point is that trying lots of different training methods wont help it will just confuse your dog so choose one method and stick to it.
To avoid the barking we chose 'look at me' if we saw another dog or person we asked George to 'look at me'holding a small treat at face level, of course he would look at the treat and the other person or dog would walk by and then we would treat. Gradually he learned to look at me without being cued and now as long as he doesnt bark when passing another dog/person he gets a treat. Also when greeting another dog as long as he doesnt bark he is allowed interaction ( not now with covid19 of course) if he barks we walk away if he does well ie; no barking he gets a treat.
The food issue; because he had been used to human food any movement in the kitchen triggered him. He assumed any movement or activity in the kitchen meant he might get food so we made sure that the kitchen was closed to him except when he was getting food. and giving human food treats stopped the moment he came through our door. He gets dog food (we feed raw) and dog treats. NO scraps.
At first he would pester us at the table. But sheer persistance in saying NO and sending him away from the table has worked and he will now just lie on his bed or the chair and sleep while we eat. OH made food last week and panicked because when he looked round George was no where to be seen... He thought George had escaped but he was still sleeping in his bed as he now knows that food prep is nothing to do with him and there is no point in begging. But every time you give in you take 10 steps back.
A good online trainer on youtube is kikopup all positive and very clear, Dog Training by Kikopup
hope that helps a bit.
We adopted George last year. For his entire 18 months he had been fed kitchen scraps plus dry kibble to make up the weight,
He had a long line in the garden which allowed him to do what he wanted including running to the fence and barking to get attention.
One point is that trying lots of different training methods wont help it will just confuse your dog so choose one method and stick to it.
To avoid the barking we chose 'look at me' if we saw another dog or person we asked George to 'look at me'holding a small treat at face level, of course he would look at the treat and the other person or dog would walk by and then we would treat. Gradually he learned to look at me without being cued and now as long as he doesnt bark when passing another dog/person he gets a treat. Also when greeting another dog as long as he doesnt bark he is allowed interaction ( not now with covid19 of course) if he barks we walk away if he does well ie; no barking he gets a treat.
The food issue; because he had been used to human food any movement in the kitchen triggered him. He assumed any movement or activity in the kitchen meant he might get food so we made sure that the kitchen was closed to him except when he was getting food. and giving human food treats stopped the moment he came through our door. He gets dog food (we feed raw) and dog treats. NO scraps.
At first he would pester us at the table. But sheer persistance in saying NO and sending him away from the table has worked and he will now just lie on his bed or the chair and sleep while we eat. OH made food last week and panicked because when he looked round George was no where to be seen... He thought George had escaped but he was still sleeping in his bed as he now knows that food prep is nothing to do with him and there is no point in begging. But every time you give in you take 10 steps back.
A good online trainer on youtube is kikopup all positive and very clear, Dog Training by Kikopup
hope that helps a bit.