I did a +7 Waycrest and I was getting around 22k DPS. Is this normal for Vengeance specc? I’m new to tanking.
Also, for the veteran tanks, any tips on a newbie tank? DPS rotation-wise?
I have issues getting all the mobs to focus on me sometimes.
What number did you have in mind to be considered good dps by chance? I looked at your profile and your corruptions need a lot of work. You need more TD and more haste. You need to get an Azerite item with Cycle of binding on it. As well as get better trinkets. I ran you through a tanking sim and it has you at 34k dps and since you are new to tanking and all 22k is a start 
You should take Fracture in stead of Feed the Demon. Since you are running a Gluttony build you really should have Vision of Protection in there. Here is a great guide, read over it. https://www.method.gg/guides/vengeance-demon-hunter/azerite-traits-essences-and-gear
what’s TD?
i think is Twilight Devastation… or Tol Dagor
Twilight devastation
And VDH damage is a joke without it, ideally at rank 3. This is doubly true if you run gluttony instead of spirit bomb.