I personally think  there is no "how to" sort of approach to your question. I think a better allocation of your time might be better spent on just diving into every corner of cryptocurrencies space. Study every aspect and every technology. Don't get hung up on the top 20 coins. Dig deeper. Understand blockchain technology as a whole .Don't make any investments . Just submerse yourself in the space. Your "window" or "niche" will emerge. Think most focus on investment first. Some barely scratch the surface of the massive knowledge base but manage to hit the buy and sell buttons on exchanges on day 2 or as soon at their fiat to BTC confirms. I tell friends and family. They should not be trading or investment tell they fully understand what they are buying or selling. If that takes months. So be it