So basically, in order to have a steady stream of money coming in, you need to start with having a steady stream of money coming in? :-D
Some spend their time investing from an early age... classifying assets and liabilities. My point was a few grand invested as a kid seems small, but will turn into a lot several decades later.
Others spend their lives making decisions out of impulsive narcissism. Unless you are a trust-fund kid, life can have very real consequences if things go sideways.
Most will learn the hard way... only lawyers and politicians get paid for excuses in life. =3
And often your investments will lose you money, so try to avoid the unprofitable ones, especially when starting out.