Hi, I have brought a new puppy since I was bored and lonely sitting at home in this pandemic, so I wanted a companion. I adopted him a few days back, and it's 2.8 months old. I already have cats with me, but the problem is I can't handle it's mood swings. Pup is very active and fresh, but it doesn't eat anything. I tried milk and biscuits, but maybe he is small enough to drink itself. And I couldn't leave it alone for a second. It doesn't allow me to go to the restroom even. Moreover, it's messing around at home. I make him sit in the litter, but he's not getting used to it. Can anyone tell me how to handle such a situation?