Welcome to the Weekly Question Thread on c/guildwars2!
This post is dedicated to those questions that you might not think is worth making a whole post about, but sure is worth getting an answer to ;)
Remember to also take a look at the links in the sidebar, which holds lots of great resources.
GW2 generally does not support Addons/Mods as you might know them from WoW or ESO. There are a few that are kinda tolerated (see Sidebar/Addons).
As for lack of direction, the game heavily rewards exploration, i. e. almost eveything you do (even gathering materials) grants experience and leads to your character leveling up and getting more abilities.
So my suggestion is to go to zones with a level range (shown on the world map) around your character’s level and it explore them, i. e. unlock Waypoints, visit POIs and Vistas, do Renown Hearts and last but not least engage in Events popping up near you.
Every 10 levels you are prompted (by in-game mail) to progress your Personal Story which will take you to zones you may or may not have explored yet.