You can't learn to trade if you don't stay in the game long enough. To stay in the game, you have to learn to manage risk (i.e., you have to learn not to lose money.) This point is brought up over and over and over again but few traders take it to heart. It's not exciting to not lose money. Everyone wants to dream about making lots of money.
"If The Fool persists in his Folly he will become wise." - William Blake