Technical analysis is not a panacea and it will not always give you 100% probability for any of the trades.
However, having studied it, you will have an understanding and an additional tool for working with the market. And sometimes you can really catch good movements only thanks to this analysis.
Knowing how to analyze the chart and the possible movement of the market is a must especially if you’re planning to take it seriously or as a living. There should be a basis in something that we do not just because its hype or simply just to hold. We must track its performance if its other coins or altcoins to know if they are for short or long investments. Unlike in bitcoin that we see how the price moves in time even by just holding it in other altcoins it is not applicable that there is a big need to analyze how it moves and where it can possibly lead.