have (only) oneself to blame

: unquestionably the best : peerless

: alone in a class or category : sole

: having no brother or sister

: as a single fact or instance and nothing more or different : merely

: solely, exclusively

: at the very least

: with the restriction that : but

: and yet : however

: were it not that : except

: a person's self : one's own self

: one's normal, healthy, or sane condition or self

: to find fault with : censure

: to hold responsible

: to place responsibility for

: an expression of disapproval or reproach : censure

: a state of being blameworthy : culpability

: fault, sin