The natural inclination for crypto investors is to identify a new altcoin with the potential for growth, invest heavily when it's still inexpensive to do so, and then reap the rewards when the value increases. That being said, the altcoin market is growing so quickly that many new digital currencies hitting the market might not be good long-term investments.
To stress some points made above, realize that a diverse portfolio and investment strategy will eat into gains as often as it staves off losses. The only way to make big profits most of the time is to make risky moves. If you go all in on a single coin at a given price and it goes up, that is a payday. If it goes down, your investable funds are locked into that crypto (unless you want to sell at a loss). Diverse strategies protect against this, but they will also eat into your potential gains (as it is rare for everything to go up or down at once). Know what you are looking for and know how to weight your portfolio to reflect that.
No, the successful trader is not me. I’ve gotten lucky a few times and I’m still refining and trying out strategies; on the other hand, I’m part of communities of people who trade on a daily basis to grow their portfolios, and while some of the results can be attributed to luck, a majority of it is based on fundamentals, good habits, and experience.