Essay writer's block....Tips?

I have an essay to write..it’s the 6th one of my course (7 in total) and it’s on the subject of God and Evil which is a sensitive subject for me and I can’t seem to get it started.

I don’t usually have problems with essays..my marks have been good so far excellent in fact…but I’m completely bumming out on this one. What’s wrong with me?

Any tips for writers block when you have essays to do… It has to be in on Friday..they generally take me a good 20 hours to complete and I only have just about enough time (as I have other commitments too)

and yes I know…Fluthering won’t help get the essay done…but I need HELP guys and girlies…