So if you trade by emotions you will very likely loose money on the longterm. Therefore you should try to stick to your strategy and use as much technical tools for chart analysis to avoid trades lead by emotions
To some extents you are right; but you are not necessarily required to stick to a strategy, but you need to improve your strategy and trading techniques from time to time; so that you can get upgraded, and more informed even in the crypto currency space. Also, irrespective of the level of experience, always do your own research,