Was running the MSQ doing one of the dungeon quests….

Get a group and the healer won’t heal anyone not even the tank. Said something about only healing those who play correctly.

The tank gets zero heals, healer says "LTT“ and leaves.

Tank admits to being knew to the roll, apologizes for not being good and leaves.

Being new to the game and coming from wow, waiting on heals and tank isn’t going to go well. I leave do some random stuff and decide to retry.

Get a new group, healer won’t heal me because I’m not doing any AOE…. I don’t have an AOE yet. I inform said healer of this fact and get a tell from the healer cussing me out and demanding I learn to play and use AOE….

Start a boss fight, no heals are going out. (Won’t heal the tank not that this tank needed heals) Healer says "get good or no heals"
About this time adds pop, we switch to adds but the tank won’t pick them up, and says "you pull it you tank it" we wipe and both tank and healer leave calling us noobs.

Is this normal behavior in dungeons? Should I just not do the dungeon quests until I get to max level? Can these quests be soloed like in other games once you reach high enough level or will the game sync me to the quest level?

Is this like wow where you’re better off just doing everything solo or with your guild/ FC and not use the duty finder?