I can tell you one thing in general and based on my experience in my life so far, if someone knows for sure how he can make money with day trading, he will not post it publicly and for free so the competition for him will increase and he will probably make less money. If you or other day traders win money, then other day traders have to lose money. If you are looking for a good investment, then you need to spend your time and research about low priced and promising altcoins with huge potential of price increases.