Learn technical and fundamental analysis. Trade on coins that have good fundamentals. Then technical analysis to find out the right time to buy or sell coins. In addition, prepare patience when the coin price decreases, don't panic.
Its really a good effective suggestion you have given .We need to research the project regarding the coin and also analysis the technical things which always help us to get a good return .However we need to analysis the chart as well which helps more than trade on blindly .So i think that's the main thing what i mentioned is very need to know before trading on crypto.