Is it possible to completely erase a memory of something that happened to you that scared you nearly to death?

Is it possible to completely erase a memory of something that happened to you
that scared you nearly to death?

Is it possible to completely forget any memory of an event that evoked very
strong emotions such as anger, love, lust, jealousy or greed?

Is it possible to wipe out memories of things that happened
that threatened your very existence?