If you refuse to learn mechanics, and or do something like stand in garbage that hurts yu or might wipe the party to spite others who were simply trying to help you understand then yes imo you are a bad player..

If you are willing to learn and do whatever it takes to learn your fine.. Some people take a while longer to learn things than others.. I am one of those people.. I have a learning disability, takes me a bit longer to catch on than others, and I learn by doing much more than by just watching other people play.. so simply watchin a yt video doesn’t really help me much. I forget mechanics ALL the time. Sometimes i have to do something like a dosen times before i flipping get it.. but i keep trying. And i have anxiety so that doesn’t help.. I have only once i think gotten really harped at for being a bad healer and that was when I first played back at the end of ARR.. since i have come back tho i have only had people try to help if I was missing something or could improve.. sometimes I feel bad cause I don’t know what they are talking about.. but generally ppl tend to be helpful if you are willing to learn..

If you have too much trouble though you can always make friends and just only run with friends.. I know that is not very easy but it is a way.

Also sometimes not all classes are meant for all people.. you might wish to be a class that just doesn’t actually fit well with you. Try something else and see if things improve.

Those are just my thoughts though.