General What’s the biggest mistake beginners make in turn-based strategy games?

[quietoffensive]

Playing like every move must give instant reward is a big mistake begginers make. I did that when I started. You rush to take a little advantage, thinking you’re smart, not knowing you’re exposing yourself long term. The problem is that the beginners don't think ahead. That’s why they always crash.
Strategy games know how to punish impatience badly.