Are you planning on playing a new character btw? If so, I'd suggest looking for some people who'll want to help you with story content. The low level duty roulette does help a lot getting you through the story mode dungeons, but most of the time people don't want to wait for cutscenes etc. Especially the later ones like Castrum and Praetorium can be a pain if you prefer to take things slow.

If you decide to go for Phoenix, feel free to add me to your friends list. I'm always willing to help with things.

In the end though, the most important thing is to have fun, and don't let speedrunners ruin your experience