Pet Sitter - Now Hiring

My dog is 11 years old and she is 88 lbs. I haven't had her groomed in years but I just got all of her shots updated and I believe it is time. Her nails need trimmed, she sheds really bad, and I think she may need her glands expressed?? She is a sweet dog with a loud bark but it all boils down to her just being anxious. My vet gave me a prescription for Trazadone to give her before she gets groomed or if we are going to have thunderstorms, etc.