So I myself am a former WoW player as well. Pretty new as well. If what you are wanting is to know what you should be doing then here is my advice.
If you are seeking PVE content then hit max level first and complete the MSQ. After doing so then the all knowing grind for gear starts.
Since we have both played WoW I will explain in a way that will be easy to get.

Upon reaching max level:
1) Unlock all the end game dungeons (Twinning and Akademia) along with Extreme mode of the 2 trials and Edens gate (raid). This will set you up to be able to tackle all of the content as you gear up.
2) Run your Daily Roulettes every day. Consider this like the WoW Daily Heroic dungeons we would do. By doing this you get a healthy chunk of Goetia Tomestones which you can use to purchase 440 gear in Eulmore. You can grind dungeons all day long if you want for these tomestones however you only get the bonus from the first Roulette each day.
3) Phantasmagoria (i think i spelled that right) tomes are kinda the equivalent of how WoW used to have Marks of Valor back in the day. There is a 450 weekly cap on how many you can get and it unlocks 460 gear and all of it is pretty pricey. Work towards your cap by doing roulette dailies. My advice would be save up for the 10 Rowena's Tokens so you can unlock your 460 weapon as soon as you can since its easily the most expensive piece to grind for.
4) Run Edens Gate Normal Mode. All 4 of these bosses drop tokens that you can roll for weekly. Once you get enough tokens you can cash them in at the Eulmore vendor for 450 gear. Also I believe by completing all 4 bosses each week you get 1 weapon token. You need 7 of these tokens to unlock your 460 weapon.
5) After getting in all 440 gear then just keep doing your daily roulettes to get capped on your phantasmagoria tokens and after you get your weapon then grind them out to get 460 gear. Also if you can get in a forgiving group thats willing to let you learn I would reccommend doing the Extreme Trials of Titania and Vauthry weekly cause you can get tokens from them that unlock 450 gear as well.

Thats pretty much it for basic end game content. After that you get into the higher tier stuff such as Savage mode raiding which requires a bit more coordination and effort from all involved but drops the highest gear in the game currently.

I hope that all helped man I get that its rough being new. I have been and still am there as I am trying to push into Savage mode raiding as we speak. Hopefully I helped a little