graphical analysis. buy when it falls and sell when it rises. in this market, those who study and have patience win

Hi guys. I started trading about 2 week ago, and since then I lost more than half my investment. As soon as I buy a coin its value starts to fall. Can someone please share tried and tested strategies. No one can anticipate the future value of a coin but, one can at least tilt margin in their favor through strategies. Please Help.