u/EntrepreneurAdept331

So I have a rescue and I think he might be mixed with a pug cause of his tail and I love him very much but Im also very autistic and this is my first dog ever. He bark all the time, is terrified of other dogs but I really wanna get a second minpin so he has someone to play with as I'm often very tired but he always gets so sad a look on his face whenever I leave or try to do anything and can be quite territorial. I feel so sad and hate myself every time I leave cause he sounds so sad. If there was a routine of how often he should go to the groomer and how long walk and how much I should play with him daily so he isn't sad would you have any advice?