The darkness inside of Hope

I keep telling my self to hold onto the sliver of hope I have been given but I'm quickly slipping,i tell my self not to give up on it all not to end it but the voice in the back of my head egging me to do the final deed keeps getting louder and louder as time goes on.I'm looking for the light at the end of the tunnel but its not there.
I don't see any end in sight,only misery and suffering.