In my opinion the best strategy for crypto investing is holding it for a certain length of time until the ICO project moves with the market. This might take longer but might be the better way than trading. Trading is good for people who have lots of capital and nothing much to worry if there is a loss. If you are a beginner its ideal to invest both in bitcoin and altcoins to get better results.
You really have to take careful steps in making your investments. You have to first understand what really is cryptocurrency all about; how it works. Then you've to research where is the good place to trade or to buy. Of course you also have to research on the best and safest place to store it. The one that's been testified by several people. Then you've got to understand how the market moves so you would know when is the best time to buy and to convert. Also, you have to give it time because it is a long term investment.