Trading needs a lot of researches and analysis like financial analysis,market analysis.Unless you know the previous and current market situation of a coin,it will not be able to find the coin which is most under valued.
its need complicated analysis and not everyone can do this.even an expert ,they learn all about analysis more than years before could earn money and profits.
besides that i'm not just good analysis needed, but we have to train our psychology to be stable, because this is very important. as good as any of our trading skills will not be useful if not offset by good trading psychology