When it comes to trading, information is key and power. For this to work out, you need to have technical and fundamental analysis. They are have symbiotic relationship and even top traders buy in to these two terms.
Technical analysis is using of chart and previous historical data to predict the price and performance of coin. While fundamental has to do with development of the project it self in terms of good news, partnership, listing.
The above is very important, the other basic of trading encompasses resistance and support, volume and popular indicators and lastly buy every dip and sell the news. It has work for me and it doesn't since market is beyond our understanding sometimes