Analysis of Leave Yesterday Behind

Somethings make me happy,
but others aren't so great.
I never like it when I'm sad,
that's a feeling that I hate.
Sometimes I feel the worst,
and others I'm okay.
When I'm all excited,
thats how I want to stay.
Somedays are just real bad,
when I feel down and blue.
I try not to cry,
but there's nothing I can do.
My eyes start to water,
and then falls a tear.
I hope no one sees me,
thats one thing I fear.
Eventually I stop,
and try to clear my mind.
I wake up in the morning,
and leave yesterday behind.