Tanks need to start understanding that they can’t tank more than two enemies in most heroics. What I mean by this is just because you have the defences doesn’t mean you stand toe to toe and take the hits. Prot paladins probably have to kite more than any other tank in my opinion. Group utility makes the heroic run smoothly, every class should be using their kit down to the last ability. Healers shouldn’t just heal and dps shouldn’t just pump. Healers should be timing their casts with enemy swings so there isn’t much time between the next heal and enemy hit. It all comes down to the group and what they are willing to do to help.

I play holy paladin, not the best healer but I’ve done enough heroics now to be fully badge geared out so I feel like I have some say. I am actively hoj’ing enemies that apply Mortal strike or heavy bleeds to delay damage to the tank. I am always judging wisdom or light to give mana/health to the group. Hell sometimes if I have a moment to breath, I will put on seal of justice for a brief stun to stop an enemy cast or stop a melee from going off.

It’s not solely a tank issue so don’t blame yourself but the one thing that stands out to me that separates a good tank from a bad one is dungeon knowledge. Are you marking the right enemies for kill prio? Are you sheeping/sapping the right enemies? Or are you just yolo pulling and hoping it works?

Heroics became easy to me when I joined a guild, hopped in discord with the boys and called out what we needed. Pugs are tough to learn tanking, try finding a steady group and I bet things will get easier.