It sometimes seems that way, especially when we're down, but I think we have more control of our situations than we realize. Yes, chance is a factor in accidents, wrong place-wrong time events, unexpected repairs, Vegas, terrorist attacks, etc. However, we also have free will and our decisions play a huge role in defining our futures. Contributing factors include who we hang out with in our youth, having children too soon, substance abuse, gambling and other bad habits, dropping out of school, decisions on whether to stay at home or leave, who we marry, etc. A bad event can appear to be chance, but there might have been a dozen decisions over years leading up to it. We also have to learn from our bad decisions.
Take my stupid JPoP investment for a $10K non-existent RAZA, and other pre-orders around the same time, for instance. It was a bad decision I made, actually a half dozen bad ones, as it was a long-term payment plan. I learned a valuable lesson from that experience. I don't believe it was bad luck or chance that got me, rather it was my bad analysis and reasoning.