How to say "One's" in Japanese

When translating "one's" into Japanese, you must choose carefully between 勝手 and 身の上. In Japanese, 勝手 (かって (katte)) is typically associated with "one's own convenience; selfish; arbitrary; way (e.g., kitchen)" (Syllabus Level: N2) and represents Can mean 'one's own convenience/selfishness'. On the other hand, 身の上 (みのうえ (minoue)) maps to "one's circumstances, one's personal history/fate" (Syllabus Level: N2) and represents Usually refers to a person's personal life situation, often implying difficulties or hardships. '身の上話'. A literal translation of "one's" can often sound unnatural to native Japanese speakers if mixed up!