A bit overwhelmed

I’ve been playing classic for a very long time I’ve never really liked retail because of the abysmal leveling experience so I bought the new expansion bundle that includes dragonflight,character boost,a bunch of gear and the new expansion pre order. All I can say is that it teleported my character directly into the dragonflight expansion after I had made my shaman obviously I have some quests that have been kind of shoved into my view. However I still find myself a bit overwhelmed with everything can anyone just throw some advice in the comments of this post?