Why

I try to stop but i can't...why
i try to walk but i just fall...why
i try to talk but nothing comes out at all...why
i try...i try...can someone tell me why?all i know is what i know but i just don't know why
what i want to know is:
1.why do we try but sometimes we just cry when we try?
2.why do we do the things we do when sometimes we don't mean to?
3.why do we try so hard to make our dreams come true?
i try to sleep when i want to eat,i try to eat but I'm stuffed,i try to play but the boys say noway they say were for dating and not for playing but who cares what they say.i really don't know why they say that i don't know anything but i do try to understand them but i don't know why so i just don't try cause i don't know why i should try!