When I know that something bad will ruin my mood, before it happens I usually calm myself and be emotionally read for it. That way, the blow won't be as hard. First, I keep thinking about it and thinking of the bad stuff and what will happen. When I finish, I'll just go, "Whatever. At least..." that's when I start looking at the good side of things. (: Bad things happen, but it's usually my own fault. It's like telling myself, "It couldn't get any worse..." but in a different way. I tell myself that I should have done better on this test or I shouldn't have done it, but what's done is done. I have to embrace what has happened and make the best of it. I can't let something like that ruin my day!