self-deterioration

Translations
самодеградация
саморазрушение
самоухудшение
ухудшение собственного состояния
деградация самого себя
Definitions
The process by which a person or thing gradually becomes worse through internal processes or conditions rather than external influences.
A decline in one’s physical, mental, moral, or social condition caused by one’s own actions, neglect, or harmful behavior.
Words
self

noun
само
deterioration

noun
ухудшение