Both plays a viral role in our wins when it comes to gambling or even trading. Most times your strategy seems to have been broken and the game turns against you. Not that it didn't work or your strategy failed at that point, but because luck wasn't in your side. Gambling backed by your experience only give you a upper hand compared to other new gamblers out there who doesn't understand how to play and maximize their wins. They might be lucky sometimes to win but you as an experience gambler will have the upper hand to make good wins even when they fail or loss.