My memories from adulthood are shaped by those early memories. I'm sure there must have been some good holidays, but the majority of them were dominated by tragedy, abuse, or other trauma. I've had better experiences as an adult, but the shadow remains.
You can't shake off the trauma of childhood. You can address it. You can get counseling. You can recover. But you can't erase it. It's always part of your life and it will color your adulthood.