Zalera is a small and laid back World, so you might have issues running ARR/HW fates and Hunts unless you find the right groups. I highly suggest being in a few Hunt/FATE linkshells geared towards running both new and old content. This may help considerably as there are a few organized groups in Zalera who do this. There are a lot of nice people on Zalera and they try to help out new people as much as they can, so you might just have to look around for them. Unfortunately, my alt is no longer on Zalera, but I was pretty active in Hunts and FATES for both new and old content.

As for toxic people in dungeons, that's a shame. I wish people would take time to explain strats and help out more if a player is struggling, instead of just complaining and not aiding the situation.