I'd encourage to play through twice blind at least, then look up how to get endings (especially g/f although there should be a hints.txt in the game folder that tells how to get endings). First time as normal and then second time, well there is a natural progression I think for second time runs.
Looking back when I played the first game, it's kind of crazy how much it sucked me in. I played the entire thing, all endings, in one sitting. Absolutely wrecked my sleep schedule. And then there was a second game. My first run I killed Alice behind the white door because it wasn't the Alice I picked at the start of the game. With all the other deaths, she was way too suspicious.