Anyone have any recommendations for a dog trainer that is good with adult rescue dogs? I have a rescued 2 year old Chihuahua mix and he has high anxiety, pees when he's nervous/excited, does not understand *any* commands no matter how many times I have tried to work with him, doesn't understand not to potty inside (we take him out a LOT so we don't give many opportunities to have accidents but they have happened), etc. I want him to be confident and he's smart, I KNOW he can learn this stuff! And he is absolutely the sweetest pup. But I am clueless on how to train him. I do have a clicker if it would help. Here's a picture of him :)