For me the best way to make more is either by holding bitcoins for long term or investing in altcoins and making profits in short term and I believe in investing higher amount in altcoins as altcoin markets involves huge pumps and dumps and if you can advantage of those fluctuations then you can really make a good money in quick time.
Day traders are taking advantage on the price fluctuations and they also benefited in their long term investment, but as a day trader you are more focus on trading regularly and with a wide market of crypto currency in general they can easily find an asset that are more volatile.
Bitcoin is a good investment and good asset to trade but let's also consider some altcoins as they also have volume that could attract traders.
Yes its true money make money if you buy bitcoin when the price is low so then buy bitcoin as much as you can and then when you come to know that the price go high then sell out all your bitcoins and it will give you a very good profit Im always doing it form a long time and I got a very good profit from it so I will advise to everyone that can be the easy way to make money.