You need to capitalize your "i"s when referring to yourself.  No exception.  After correcting, I shall correct your essay, if you wish.  Shows your sincerity and seriousness in improving your English.  At the first glance, you have the potential to write great.

Slipped away

In the darken room...there i heard a wailed of people. Others were sitting in the floor and asking for forgiveness. Some where calling out your name, and then others were asking why you slipped away suddenly. The moment i saw them...their bitter initial-reaction forecast along the sorrowful environment. I knew then that you are a gem of gold that binds as together. Your lost had a huge impact among us.

On my wonderful memoirs with you, I woke up with the screeching sound of the door, there you are bringing amazing tasteful foods that loads the empty stomach early morning. Your beautiful smile fades away the difficulties of a day. Everytime i heard those big voice of yours its a security blanket assuring me that everything will be alright. You never let me down, the moment mum start to scold me for terribly misbehaving her rules. Your all the way protecting me against the rod of sticks. When i laughed harder its your joyful moment. One thing that I'm so proud having you, when you showed to us how you care and love us equally. Some may not understand you, but i believed in you.

There I'am holding your cold hands, so cold that i can't feel the pulse anymore. I then tried to feel the beat of your heart. However the body that I'm holding was a replica of non living creature.
I feel sorry for the day that you left without even saying goodbye. I never knew how time passed by so quickly, without your presence seems a missing cue to move on.

I wish i could turn back time...turn it into my own command. A power to manipulate and control the picturesque of event. But darn it...this can only happened in coax world of fantasy.

As i sat in your grave i can no longer hold you. But i knew then that everything happens with a certain purposed. I badly need you and missed you. But deep down in my heart i knew that you were always there for me. Protecting me always.