I had a similar situation with my puppy (who is currently 4 months old). Like others have said, she is just really young. Some things I did that worked: *I slept with the blanket that I kept in her crate. This way it smelt like me and helps her not to feel so alone. *Slowly get her used to being away from you. Leave her in a room, outside wherever (obviously a safe place she can't get into anything) and after a few minutes come back. try to only come back when she isn't barking anymore so you aren't rewarding the barking. *I also use this spray http://www.amazon.com/Earth-Heart-Canine-Aromatherapy-Calming/dp/B007CL9NWG/ref=sr_1_2?ie=UTF8&qid=1439306500&sr=8-2&keywords=dog+aromatherapy+spray can't really vouch if it is real, but I seem to notice she calms down with this is on her. just try not to over use it.