right, nothing is simple. That said, I'm not day trading at all. I am picking based on "fundamentals" and holding long term. So far I have only sold 1 coin, and it was because someone put such a crazy high ask up that selling 10% of my stash paid for and put me in profit, so it is 100% house money after that.

bottom line, you should be buying as the price goes down, and selling as the price goes up. but, the majority of people will do the opposite.