We are actually in the same thinking about in trading, this is what most often said by the community here. But its kind a bit confusion to me, I still don't know how to read the graph, and the right timing when to sell or buy, even in prediction I'm too weak for it for now. So it is really unpredictable.
Actually trading is difficult only when we start to trade, but we have no knowledge or skills how to trade, than we always do mistake buy or sell. That's why everyone say that need experience and time than start trading. But i also agree on it trading is really unpredictable job. Luck wise we make money in trading.