I'm glad you stuck with it, I remember your earlier posts voicing your concerns.
I hope you find a way to continue enjoying it.
That said, trials will always be hit or miss, because those have punishing mechanics that should be explained. If you want to be confident in your abilities I'd suggest reading or watching a guide, but there's also nothing wrong with zoning in and saying "first time, what do I need to know to not die or kill us?"
The dungeons in the first part of ARR are an exception to the rule anymore. Because even the first dungeons added after launch, in 2.1, included walls/gates that limited the amount of enemies you could pull at a time.I decided to try both because people said it was on par with Wrath, which is the only time I enjoyed doing either. Stress free AoE fests. It hasn't been until recently after I expressed my difficulties that this caveat of ARR being an exception was added. I would have saved myself a lot of frustration otherwise.
As stated above though, trials will always be hit or miss.
I can confirm you just got unlucky with Thornmarch (Hard). It's a very easy trial IF people do what they're supposed to. It's no fault of the healer if people don't do the correct kill order and end up take WAAAAY more damage than they're supposed to as a result.Some of the trials are nightmares, like Thornmarch Hard. Maybe I got unlucky, but I found it worse than Chrysalis. When I raided, people knew the strategy (never did LFR). Many of these encounters through DF are awful experiences unless they're Cape Westwind level easy.
I always assume people don't know the fight and explain it beforehand. I'd rather people get mad at me for taking the time to explain and waste ~30-60 seconds, rather than having the group wipe, wasting that much time PLUS the time it takes to then explain it correctly. Because as irritated as they might be for someone explaining the fight, they're just irritated, not angry or raging or anything else beyond that.