tanxiety is a very real phenomenon because tanking necessarily requires you to take initiative
as a former tank main, the best advice i can give is to watch your (good) tank while you& #39;re on another job, see what cooldowns they use where, where they put the mobs, etc.

take screenshots of where the tank pulls mobs and look at them afterward. if you& #39;re a healer, pay attention to the defensive cooldowns they use and how that affects how much you have to heal them while it& #39;s active, and translate that to your own tanking experience.

the hardest part of being a tank is removing the fear of the unknown. arm yourself with knowledge.
also: if someone is giving you shit, just abandon the duty. sure, you get a 30m penalty, but next time you queue will almost always be near instant. they have to wait for backfill.

YOU set the pace of the dungeon. don& #39;t even say anything - just abandon if people are being assholes. you get yourself out of a miserable situation, and they& #39;ll now spend more time in the dungeon than they would have if they just kept their mouth shut and pressed their buttons