Diablo IV ...

 OK.  I am terrible at this game.

I've beaten Diablo III a number of times at varied difficulties.  It is to the point that I can fire up any character and beat Diablo then go on to beat the angel of death.

I CANNOT beat a SINGLE (mid-level or above) Boss character in Diablo IV.  I can beat some of the early on ones but as soon as I get a decent level, say 20 or so, I am doomed.  You get locked in some little room with nowhere to go, and you just cannot take the bosses life, and the longer you go the more offensive attacks it hurls at you.  I've died about 5 times now trying to beat just a mid-level boss.

Starting to not WANT to play the game.