When Life Gives You Lemons...

Do you all know that saying "When life gives you lemons, make lemonade?" Sometimes, it just doesn't make sense to me. When I ask about it, I always get the same, vague answer. "Well, it means when something useless or sour comes into your life, you have to make the best out of it." I kind of get that, but it's a lot harder than it seems. Let's say you get a bad grade on a test (the lemons). Now how are you supposed to make the best of out of that bad situation? Take it as a learning experience to do study harder? Learn to face the disappointment and do extra credit to make it up? That doesn't sound like sweet lemonade to me. It actually sounds like the lemons, only when you were trying to cut them up to make your lemonade, you cut your hand and the stinging citrus juice got in the cut. Now you have a burning sensation mixed with blood on your hand and a few halfway cut up lemons to deal with.