I have adopted a corgi and he is being brought home today. The only problem is I don't know anything about training a dog and there are no places where I can enroll him in class. I want to be able to do this right and teach him all that needs to be taught. I'm not even sure if he is house trained yet....and he's a year old. it's not too late is it? Also, what can I do in order to prepare my home/his new home to where he feels welcome??