But there is one detail I will share with you: I decided to start not in high tech because I thought it was too risky, but to get my feet wet by starting with less risky investments. So I decided to invest in a real estate development in 2006, thinking that even in a worst case scenario there's an asset there that will be worth something no matter how badly things go wrong.
Like I said in the OP, you will be shocked at how things can fail. (And this is far from my only horror story.)
FWIW, I've also had some winners along the way. I'm not poor, just poorER than I would have been if I'd just put the money in VTI.