Ugh! Make the best of your day. You may be having the worst day ever but psychology says if you smile (even if it's fake) you'll start to feel better. just think what you could do with a laugh.
Bonus: You may think that all the insults you throw at your friends are jokes, but in reality they can they can take a lot of them seriously. Don't call them fat, ugly, or a slut. Even if you're kidding, words can do a lot...
At the same time, stop being so emotional people. You'll find love when you stop looking. Don't spend every moment you have going on dating websites and rejecting ugly/not attractive people because you're shallow! Ignore love. It'll find you. And teens, forget love until you're 18+ (advice from a friend.)
And finally today, act your age. Seriously when you're Sixteen but act like you're ten, it makes you seem annoying and immature.