What are all these emotions?

Why is it that all at one time in your life everything crashes down
So many emotions running through you

You're sad, happy, mad.
You're all these things at one time.

People want you to be sad when you're happy
Then happy when you're sad.

What's going on?
You can't even tell what you're feeling anymore

Why do emotions take control?
You want to feel happy but you're sad
WHY?