the art or skill of achieving success or acquiring an advantage over others
lifemanship in American English
(ˈlaifmənˌʃɪp)
noun
1.
the ability to conduct one's life, career, personal relationships, etc., in a successful manner
2.
the skill or practice of conveying to others a real or apparent sense of one's superiority
Word origin
[1945–50; life + -manship; popularized, esp. in sense of def. 2, by the book Some Notes on Lifemanship (1950) by British author Stephen Potter (1900–69)]