By trying to get the memories out of her head deliberately, Bekah is engaging in motivated forgetting.
What is motivated forgetting?
This term refers to the idea that a person can decide to block out events and happenings that are upsetting and traumatic.
Bekah here is purposely trying to forget the things that make her sad. By doing this she is trying to block out the events of her parents death. The reason for this is to get over the pain that it caused her.
Read more on motivated forgetting here:
https://brainly.com/question/4304826