Why don't you believe me

Why don't you believe me
What do you see
from the top of the mountain
to the bottom of the fountain
I have my ups and downs
I do put on a frowns
I'm happy when I’m happy
but other times I feel so saggy
I'm not a know it all
but I may hang off the wall
I’m only in eighth grade
so don't be afraid of it
I’m a pretty good listener
just not a good whistler
look at all these things
I could bring you some beads
I got nothing to loose
I just get easily bruised
So what are you saying
I hope you are not bailing
all right you got the goods
next time bring the cooks

I know this is not good either but that is what i came up one day...