Have you ever turned down due to financial instabilities? If so, then you need to fix a portion of your earning. Here the portion means investment.
Every person in the world whether they are earning more or less can fix a portion of their earning in the form of investment such as RD, FD, SSY, NPS, PF, Bonds, debentures, equities or Mutual funds etc.
Proper investment in schemes like Mutual Funds through SIP will work on the basis of power of compounding and one can see the magic after a certain period of time.