HELP brussel griffon with separation anxiety

[Griffsgirl]

Hi I'm new to this site and was wondering if anyone could give me some tips to help her with her anxiety?

 

[Brattina88]

What exactly does she do ?

 

[Griffsgirl]

She will take all of my shoes out of my room. And also tear up everything in sight.Will go to the potty in the house. I put a dog door in 2 weeks ago and when I left She dug out under the gate because I left. She was missing for 2 days. When ever i walk around the house I can feel her hitting the side of my leg she stays so close to me. I have taken her to training classes but I think when she was little I took her every where because she was so small.