Although this may not be a poem, I feel it helps to read.
Want happiness? Secret I've used for years is very simple...Be happy
Cute friend not interested? Be happy. Something go wrong? Be happy. No matter what happens, tell yourself that. Be happy be happy be happy. Smile as you spend another night alone, when you see the one person who might have made you happy in someone else's arms. Against their lips. Smile.
The Mind is quite a powerful thing. If you keep this up long enough you will truly convince yourself you're happy. You can go to and from school or anywhere, and no matter what happened that day, you'll still be happy. Only in the early hours of the morning will the reality hit, and sink in, but you can ignore this. Whos going to be around to see you at 2 in the morning. Noone, because god forbid someone sees you sad.
You can go about your day and be genuinely happy, with this new cheery demeanor you can have friends again, maybe there'll even be a person who starts to show interest. You're actually happy. Until you are home of course, at 2 in the morning, with noone around, no cutie to be with you, and your mind is upon itself.
This is when you are most sad, and you have time to think about everything that should be wrong. But of course, the next morning causes several distractions and you can be happy again.