if you want to know about trade, then I will say that trade is simple buying with lower price and selling them at higher price. and for remaining details you can see the detailed tutorials available in various articles available on google.
It may be risky a little bit but worth it to wait. Risky in some part because if you invest on the wrong coin you must say goodbye to your money, it is to lose a money there if you dont know what trading is, be sure that you know what you are entering. If you know all the aspects then expect a very big of profit when you invest to the right coin.
That is where patience is needed because since years the price has increased then decreased and so on .. just need to make sure you don't shake with the shaky price changes.