land on your feet idiom       
 (UK also fall on your feet)(尤指在一段时间的失意或霉运之后)获得成功,好运连连 
to be successful or lucky, especially after a period of not having success or luck
  Don't worry - she always lands on her feet. 别担心——她总是很顺利的。 
 She's really landed on her feet with this new job.