You win some, you lose some. And over time, you learn little things here and there that slowly improve your game and make your strategy that much more airtight. Fortunately, I've already taken the liberty of playing a thousand games of StarCraft II to help you iron out those bad habits before they start! Check out our guide to the top 10 multiplayer mistakes and stop making embarassing blunders.

#3 - You stopped expanding.
Whether you never bothered to begin with, or expanded once and just couldn’t win from there, you need to continue claiming the map and resources when you can. Having an income stream run dry with no alternative to put those ~20 workers to use at is embarrassing and can cost you the game very quickly.