How do you let go the person you love!!!!

Some people say..
"If you love somebody, you have to let that person go.."
They say, the more you try to grasp sand on your palm,
the sand will drop, but if you hold it loose, it will remain
longer..
My friends tell me to let you go,
But my heart doesn't let me listen to them..
To me, it's so difficult to let you go..
to imagine a life without you..
Tell me please.. What should I do...?
I feel so afraid..
Afraid to wake in the morning to realize that,
you are just a fading memory..
and that you are not apart of my life anymore..
I hate this pain I feel in my heart,
you are the only person who can take it all away..
Please tell me, since I'm completely lost..
Tell me, how do I teach my heart
to live without you..?
to not love you...?
By loosing you, I have lost a part of me..
I've lost my love..
I feel like a whole part of me is missing, and
I feel so empty inside..
My heart tells me, that someday things will change..
Some day we'll be at least good friends..
So now I let you go, my love..
And, I'll wait.. Until that day comes . . .