Answer:
Anna is using repression as a defense mechanism to push away the memories which she doesn't wanna keep in her conscious memory.
Step-by-step explanation:
Repression is a term in psychology that has for a goal to direct someone’s desires and impulses by excluding them from consciousness and holding them in the unconscious part of the brain. It is an unconscious mechanism that's led by the ego to keep unwanted memories and thoughts from being conscious.