I do my research and gained knowledge especially from the experience of professional traders before I have invested in cryptocurrency. Of course I have loss money too, because I need money for  my needs especially for my family that's why I have encased in no time. Basically, I used to invest for a long-term and hold my coin until reaches its highest value or my desired profit. The only way to do this is to be patient and do not panic sell if you see digital currency market falling down. Buying and selling in perfect time is my bread and butter of a good trader.