(idiom) to have only oneself to blame; to bring trouble through one's own actions

(idiom) to deserve what one gets (punishment, mishap etc)

to take the blame

to take the blame; to accept responsibility (for a mistake)

to put the blame on; to accuse

faulted at every turn (idiom); can't get anything right

to forget and not bear recriminations (idiom); to let bygones be bygones; There is no point in crying over spilt milk.