Here i would like to suggest you to first make study very well about trading in every ways and also you needed to understand  well that how to handle the loss and profit According to the down in the price of the coins that bought .
Here my suggestion for you ti be successful is that you should not get into panic any time , Suppose you bought any coin at high price and then its price get down much , then don't get panic and also don't sell Because you will get only loss in that condition , so it will be more better to hold until get profit , which is the basic concept of trading .
And don't invest your money in single coin , and investment should be in multiple coins to.lower the risk .