What is the meaning of make it?

verb

• Continue in existence after (an adversity, etc.. )
  • usage: "He survived the cancer against all odds"
  • synonyms: survive, pull through, pull round, come through
• Succeed in a big way; get to the top.
  • usage: "After he published his book, he had arrived"; "I don't know whether I can make it in science"; "You will go far, my boy"
  • synonyms: arrive, get in, go far
• Go successfully through a test or a selection process.
  • usage: "She passed the new Jersey Bar Exam and can practice law now"
  • synonyms: pass