noun
masochism
MAS-uh-kiz-um/ˈmæsəkɪzəm/
Enjoyment of one's own pain, humiliation, or suffering.
The woman's pleasure in pinching herself illustrates mild masochism.

Etymology
Masoch refers to the novelist Sacher-Masoch, who portrayed his submissive sexuality in Venus in Furs. His name supplied a term originally for sexual pleasure in being hurt or abused.
In context
masochism is a way of abusing yourself for whatever reason you think you deserve the emotional masochist isn't so different according to most definitions masochism is seeking pleasure from pain
More examples
- For him, masochism means enjoying pain during consensual intimacy.
- Her enjoyment of public humiliation strikes her friends as masochism.
- Reading every cruel review of his performance seems like an exercise in masochism.
Forms
masochism
masochist noun — Someone who enjoys personal pain or humiliation.
masochistic adjective — Enjoying one's own pain, humiliation, or suffering.