I'm copying Sian's rant which I agree with...

I like being happy. Some people like being sad. It's annoying. Forcing yourself to be sad that is. Especially when no-one or nothing is going or doing wrong. If you're complaining about tiny things. Get over it. It's life. Not everyone in the world is going to like you. Not everyone in the world is going to hate you. Move on. Start being happy. It's not hard. It's fun. And bonus: less crap happens. No one likes attention seekers. Fakers. Eat a spoon of peanutbutter or something. Or a Tim Tam. Unless you're allergic or something. Then that's a no-no. But seriously. If you're going to be sad. Make sure it's worth it. If it isn't. Then man up.