Welcome Cindy ~ and you too Lola ! We would love to see pix of your lovable mutt (a lot of us have mutts so no worries about breed-snobs here !).
There have been a number of excellent threads on separation anxiety and puppyhood. You will see "Search" on the dark blue bar under the light blue "header". Hit "search" and key in "separation anxiety" (or any other key words for your concern) to see all the threads and posts about that topic.
Now, no excuses with the pix ~ cuz we love puppies !