I'm not ready to let go. At all.

My dad. My father. The man I looked up to since I was a baby.
He died of a brain tumor; November 2010.
My mother. My mom. I always go to her for advice.
Is with a car salesman at the moment, wanting to sell my dad's old truck.
I'm not ready to let go.
I told her already, "MOM i'm not ready...please."
Nothing. I was Ignored.
I feel like the world's against me.
I don't know what to do. Or say. Or feel.
Help me please.
What do I do.?
I need someone's opinion. Anyone out there?