Even though she'd shown destructive behavior only when she was younger, I had nightmares about her getting into one of my roommate's rooms and eating a new stethoscope or goose-down comforter. So until my roommates and I felt comfortable with Maxie loose in the house by herself, the crate was her home while we were away. Finally the day came where we let her roam free while we were gone. I was a bit anxious myself while we were away that day, hoping that when we came back from vet school there wouldn't be a disaster. And I became more worried when Maxie didn't greet us at the door.
Dogs are den animals, and the crate is a place they can call their own.
Crates can also give you peace of mind that your dog isn't able to destroy something or potentially injure themself while you're gone. It's not something a trainer can do for you. Veterinary prescribed drugs are an option as well, but try training first . Good luck and keep having fun with your devoted dog.