Review my lyrics? (Im Singing also :P)?

This is a song about my old best friend who got addicted to drugs:

Video here: http://www.youtube.com/watch?v=H4eUUuqEQi0

Where did it all go wrong?
You were always so full of life
the one I turned to
my childhood friend who read my signs

But you changed
went the wrong way
lost in a heard of sheep
in the woods way too deep
and they poisoned your sweet mind

Years go by
never seen
you this way before
when you taken that E (Ecstasy)
and drink till you pass
did you expect your life to turn out like this?

When your alone in the dark
and begin to go blind
give me a call
and ill lend you a light

Yes I did say to you;
When your alone in the dark
and begin to go blind
give me a call
and ill lend you a light
We miss you
we miss you
we miss you

we miss you
we miss you
I... I Really Do
Please come back home
Come back to us
Come Back..