There are so many sources mate. For myself, I have learned mostly through this forum and by watching some tutorial videos, whether from YouTube or other sources. I did that because I am more of a visual learner. I want to see how it's done from the trading program down to how the trade is actually happening. For the other information as to what coins are better to trade for and invest in, I usually get it here or other cryptocurrency support websites which show different coin status and how they have moved in a certain amount of time, by analyzing on those information, I get to decide on which trades or deals to pursue.