My biggest fear was when I was buying cryptocurrencies for the first time. I have read and heard those stories when people fill in their cards numbers in the internet, and their money got stolen. First purchase what on a exchange and I doubted what I was really doing. I have bought «numbers and letters» and did not even understand what I own now. Fear was to be robbed. With investing it wasnt that scary, because before that I did daily trading for months, and participated in bounties. Before making and investment, I already had some experience where to look, what to search for, where pay attention, how to try to identify scam from honest project.