Rule No.1 DO NOT FOLLOW OTHER'S INVESTMENT UNLESS YOU FULLY UNDERSTAND THE PROJECT YOURSELF!

You should understand the basic knowledge of cryptocurrencies and blockchain. So many cryptocurrency investors do not even know what blockchain is and they just buy the cryptocurrencies that seemly profitable.
If you are really interested in investing cryptocurrency, you should get to the basic information and grasp the daily news yourself. There are tons of videos and articles that explain what bitcoin is and how-to get the industry information. Bitcointalk and reddit are the amazing places that you can learn a lot about cryptocurrency.