You have to read a lot about Cryptocurrency, especially Bitcoin, Ethereum and some coins in the top 10 from Coinmarketcap.com
In addition, you must also understand the characteristics of cryptocurrency with risks and benefits that can minimize losses and maximize profits. Do not let you panic sell when you see falling prices or immediately buy when prices rise.

Even so, I suggest that you monitor the price of Bitcoin and Ethereum because they are valuable now to start investing.