hack it vs persevere

hack it

verb
  • To cope; to be successful in something despite adversity. 

  • Used other than figuratively or idiomatically: see hack, it. 

persevere

verb
  • To persist steadfastly in pursuit of an undertaking, task, journey, or goal, even if hindered by distraction, difficulty, obstacles, or discouragement. 

How often have the words hack it and persevere occurred in a corpus of books? (source: Google Ngram Viewer )