I prefer to stick with short and medium term investments. After all, given the market instability, it would be foolish not to try to make money on floating rates for cryptocurrency.
I prefer either day trade and a long time investment. I search for the coins that have daily high volume and frequent ups and down for day trade while holding the coins that have a huge potential for a long time.
This is a very reasonable strategy to maximize profits. An integrated approach, I like it. I myself prefer to trade only by opening long positions in coins with high capitalization. With varying success, I manage it.