False.
Defense mechanisms are psychological strategies that aimed to protect a person from his/her bad thoughts or feelings by projecting them in an unhealthy way. For example, some defense mechanisms include repression of feelings (keeping them in), blaming other people for their unacceptable feelings or thoughts, denial of external events, expressing their frustration and anxiety in someone (hitting a dog, insulting a friend, practicing a sport, etc.) and regression (A 7-year-old boy starts to suck their thumb again as a response of living in a dysfunctional home).