stew in one’s own juice

stew in one’s own grease

act independently and with the initiative in one's own hands

in one’s own conceit

in one’s own good time

in one’s own name

in one’s own right

in one’s own way

in one’s own worth

made in one's own country

stand in one’s own light

make no distinction between what's one's own and what's another's

section s-s s-s

a feather in one’s cap

a flea in one’s ear

a kick in one’s gallop

a twist in one’s tongue

all sorts of feelings well up in one's heart

beef in own juice

born with a silver spoon in one’s mouth