You need to do researches and pick coin you like and of course use several strategies for making more profit!
Research how you mean ... ?? Maybe you can explain a little about how to research coins or analyze coins according to your experience and that is very good.
Trading is swimming with sharks, you'll get eaten bro, a better strategy is passive income from things like masternodes and income earning assets from exchanges, then you earn a regular income and can keep your shirt, and sleep at night.
Trading is zero sum game, you're either the hunter or the hunted, and if you're asking on this forum how to do trade and research I'd say you're the latter. Learn about staking coins instead.