My puppy Maple is 15 weeks old and suffers from extreme separation anxiety. We have got to the stage where she will tolerate being in a separate room, however she yelps and barks as soon as we leave the house. She has only been left for 1 hour at a time. We have tried leaving the TV on, Kongs, tshirts with my smell. I have tried ignoring her before I go out and only going to her on my return when she is calm. Yesterday she was in a crate in the car and barked and yelped for the full 1 and 1/2 hours while I was driving. She doesn't mind the car if she is on someones lap, but this isn't safe. I am so stressed about the whole thing and worried for her health too, because it can't be good for her to get into that state. Please someone offer me some advise.