My biggest problem with the game is that every time I stay away from it for too long when I come back to it not only I have to relearn how to play the game but what the hell I was up to. Granted that isn't an unusual problem with games and I usually don't have much trouble getting myself reacquainted. But in the case of Monster Hunter World the problem is exacerbated because it has a gazillion different weapons, each with their strengths and weaknesses and several different monsters to hunt, again each with their own strengths and weaknesses to exploit.
Oh, and depending on the gear we want we need to hunt specific monsters for it. Which means figuring out which monsters need to be hunted and the most efficient way to do it.