Investments are naturally risky. I know how risky to invest in Bitcoin, but if you are willing to take the risk then be ready also to lose what have you invested. I think at first you need to understand what exactly cryptocurrency is and how it works, how it is different from fiat money. Never spend more money than you are willing to lose because investing in bitcoin is like gambling and you never know what will happen to your money. Its always better to hold as bitcoin will surely have a great future because bitcoin is the father of cryptocurrencies.