One of my "Mentors" that told me a long time ago that if it's fast money, it won't last
Your mentor is right, steady consisten growth is what you want, yes it might take a few years but look at the early bitcoin adopters they had to wait 6 years before they got their millions!
The worst part about bitconnect is that, if you went and read on reddit at the time many were saying it was a ponzy scheme and they knew it but they thought they could get out in time! Never trust in luck! Hard work is the best tool to achieve sucess!