Despair

Overall I like this poem, it is dramatic and I love the words in it. But, it should have more descriptions of the pain you feel and why you feel it. I like it, though.

Hi there! I'm The.Dreamwalker and I'm here to review your piece today!

I laugh and I cry <--- comma or semi-colon
I love and I hate <--- Comma or semi-colon
I give and I want <--- Comma or semi-colon
I am like you <--- interesting way of starting a poem. A little childish in the vocabulary. Maybe formulate stanza's as well. Here, for instance, would be the perfect place for a break. That and this should end with a period.
But why am I suffering?
why am I still hurting? <--- all lines should start with a capital
I lie here bleeding <--- Semicolon would work here
I cry and shriek <--- comma
as pain cuts through me <--- comma and capitalization
as the steady rhythm of my heart wavers <-- comma and capitalization
and I whimper in agony <-- period and capitalization
I wander through the dark streets <-- comma
enveloped in the dull gray clouds of reality <--- capitalization and period
I cannot dwell on hopes <--- period
I cannot see the light anymore <--- semicolon
an eternal darkness <--- capital here and comma
is all I see in my past <--- Capital and comma
and all I have left for the future <---- comma and capital
pain, anguish and despair.<--- capital.