Crypto currency investment is the best things to make big money but in this market is some risk .
You have trade in only big exchange like binance bittrex poloniex .. its safe and very fast coustemer service .
In july month market is dawn and this time is good for buy bitcoin and altcoin you can reserch good altcoin and invest in always 5-10 parciate fund you not invest in only one coin .
In this position of market altcoin is in dip so you can buy and hold it few month for good profit
I am also research good coin and we will provide u all information
Thanks .