succeed / be successful in life

success / success in life, achievement in the world

autonomy, independence

key

(computing) key / (music) key

key (tool for opening or locking something) / key; clue (important fact for solving something) / lock

sex, gender / (grammar) gender

(idiomatic) achieve success

completion bonus, fee paid upon success of a project, contingent fee

independent, sovereign, autonomous / voluntary, on one's own initiative