Sorry man. I read your last post and recognized that a lot of what was going on with your Dad happened with mine when he died. September 2. It's been a month and I feel better, but different. Really really different than how I felt before.
I really wanted to help you help him. At least that way my own dad dying might've helped yours.
I know you don't know me, but seriously PM me if you want any advice as far as dealing with people at visitations and whatnot. It's not fun.