Need advice for speration anxiety
I'm looking for some advice for my girl. She (Chimera) has been having a lot of trouble with separation anxiety ever since her brother passed away last christmas. Unfortunately I've been unemployed during this time so she's not had to be alone very often but I had jury duty today and when I got home she had eaten through a door. I've tried calming treats and cbd treats, and as a last resort, benadryl, but nothing seems to help. She also has issues with thunderstorms.
A little history, she is a chow/husky mix. Both her parents were my dogs, she had a home ready for her before she was born. Roughly 2 years later, they lost their job and were unable to keep her so I took her back. Mira is going on 9 now and I'm unsure if there's any kind of training that could be done. Any help would be appreciated
Edit: I take on daily walks, ranging anywhere between 1.5-2 miles