Hiya :D really awesome, i really liked the two last stanzas.
But somethings missing from the:
I seem to laugh along
and smile at sudden things
but no one knows
that I'm depressed

I don't know why
and I don't know how
but you got me to be depressed

its good but your repeating some words like that im depressed and but you got me to be depressed

it doesnt have a flow to it coz ur repeating it, so just fix it so its more rhythmic and ur poem'll be the best !

have fun, good job!