Difficulty rating is probably a 4/10 for a first timer.
Only thing i could suggest is to organize your screws, and make a mental note of how things fitted.
Another thing, a lot of tutorials found online suggest using an exacto knife. DO NOT use one. If you slip with it, you could very easily end up slicing through a cable/ribbon. I suggest using a #000 flat head screwdriver for prying, latching and unlatching.