You have no idea what life holds for you. You have no idea what's in store for you. Anything can happen at any time. But you can't let fear of the unknown stop you from pursuing your dreams.
You want to be a millionaire? Don't count on winning the lottery. I'm not telling you don't play the lottery. If you want to play the lottery -- go for it. But just don't count on winning it.
I'm not telling you not to go and play games at Las Vegas. If you're doing that for fun -- go for it. But if you're not a professional poker player, then don't place your bets there to become rich.
In this highly chaotic, random world we live there is really only one thing we can count on -- ourselves. If you want to create opportunities for yourself, then you need to start betting on yourself. When you put yourself out there and give everything you have, that's when you will start seeing opportunities.