I (24M) met my partner (26F) 3 years ago and since then it has been a wild ride. I, with no help from anyone and all on my own, wrote a business critical SaaS product when I was 18. I only got a modest bit of seed capital from my dad (less than 1.5 mil) who works as an angel investor and connected me to an Indian IT outsourcing company to get things rolling. So mostly completely self made.
Recently, all on my own and with no help, against all odds, I sold my SaaS to one of my dad's golfing buddies for 2.9 mil.