All good advice, but if loading sheet film is new for you, might consider the way I learned. That is to take one sheet out, in the dark, from the film box, then LIGHTS on practice loading and unloading the film. It makes it much easier to do, IMO, to see how it works first then do it in the dark. I find that the emulsion side is easy to see with the lights on - in my limited experience it is generally lighter than the non-emulsion side.