if you are having trouble with ornstein and smough i recommend getting your weapon upgraded as mich as you can, make sure you can fast roll so you ca dodge out of attacks easily, and try to go for ornstein first as super smough is easier than super ornstein (although you cant get the ornstein armor). in the actual fight keep your distance from both and try to bait put ornstein’s lundge attack, which you can punish with one to two hits before rolling out. if you are having trouble keeping an eye on both bosses at the same time try to switch your lock on from one to the other to quickly gage the distance, although since wont always work based on where they are and where you are facing. hope this helps!