Yes, it is.
That, in fact, is a responsibility that everyone should go through.
Try chewing some gum, of your choice,
don't use mouthwash for a bit (the alcohol can make your mouth drier)
reduce your caffeine intake, stay away from caffeinated drinks like coffee, and even soda.
11 days . This is including proper diet and water.
Clean the trash cans with hot water and detergent and spray the inside with sanitizer. Do this at the end of the day every day and leave to dry overnight.