With the boost, you got 424 gear.
Whatever way you choose to work through the content, better gear will make it more comfortable.
Thus, at the start, I would prioritise some activities that will get you better gear fast.
The current base level of gear is 454, and there is a significant difference between 424 and 454. You can also get a few pieces of 480 gear easily each week.
At the fountain at the bottom of the steps in Valdrakken, there is a weekly quest Last Hurrah, that requires you to complete a couple of events. Each of those quests will give you a big upgrade piece of gear, and the Last Hurrah quest itself will give you an even higher one.
Each week there is a Dreamsuege quest in a zone. This week it is in Thaldraszus. For collecting 100 Coalescence, you can buy a 454 gear token at the vendor there, and you get a Dreamsurge Cradle for which you can buy a 467 from the quest-giver.
There is a quest that I think you will have auto-accepted, Call of the Dream. This leads to a quest sequence in The Emerald Dream. Once there, you will find 3 weekly quests - Blooming Dreamseeds, The Superbloom, and Aiding The Accord: Dream Wardens. Each of thse also gives a 480 piece.
These are definitely worth doing each week.
Blizzard pretty much replaced world quests to get gear with these “Public Events”. It’s pretty awful, but it does deliver good gear.
Gear can be upgraded with Flightstones and Crests that you will collect in the process of doing these events and world quessts.
So, as Chronormi said, to see the levelling campaign, start at Wingrest Embassy at the Waking SHores, and follow the quests within shield icons through Ohn’ahran Plains, Azure Span, Thaldraszus. That will leave you where you would naturally level to 70.
Thsn you pick up the quest for the Forbidden Reach behind Alex at the top of the tower to goto the Forbidden Reach and that quest chain.
Then you pick upo the quest to start Zaralek Caverns, and the Sulver Scale to see the story of the Dragons and Tyr.
And finally, the story wends to Call of the Dream, which you have already opened to get a jump on gear.
I also note that DF has introduced Follower Dungeons. If you open the LFD interface, you can choose Follower Dungeons in stead of Normals or Heroics. Follower dungeons are like Normals, but give you 4 very capable NPCs as party members, soyou can do those for the necessary quests if you prefer.
There is plenty about all of this on Wowhead and YouTube, but do please ask again with any questions you may have!