Ancient does not mean good. Most of your gear on your GoD DH has terrible rolls.
rolls you want for your gear:
Shoulders - dex, cdr, ad, vit/all res (you are missing cdr, ad, very important)
gloves - cc, cd, cdr, ad (you again are missing cdr and ad)
focus - socket, cc, cd, cdr/damage (you only have crit chance)
hat - cc, dex, socket with diamond, vit (you are missing vit using a amethyst, losing cdr)
chest - dex, vit, res all (armor and hatred regen are doing nothing for you on this piece)
belt - dex, vit, hungering arrow, res all/life % (again armor does nothing for you on this piece)
pants - dex, hungering arrow, vit/res all (finally got a keeper here)
boots - dex, vit, res all, armor (strafe doesn’t help much and neither does movement)
squirts- cc, cd, cold damage (all you have is cd)
bracers - cold damage, cc, dex, vit (you have fire damage, which is doing nothing for you)
restraint - socket, cd, cc, cdr/damage (you only have cd)
quiver - dex, as, cc, hungering arrow, cdr (hatred regen and socket do nothing for you here)
For me, I don’t use guardians. I would use wraps of clarity and Hunter’s wrath, so I could put COE and depth diggers in cube.
TBH, and I know this is going to sound harsh, but none of your GoD pieces are worth augmenting. You are missing a ton of damage from bad rolls. Missing cdr will keep your buffs up and rolls like armor instead of all res or vit on your chest are killing your toughness.
Your gear has massive room for improvement. I would speed farm GRs on the highest you can do in under 3 min. Use the shards and try to get better armor pieces. (Don’t waste shards on jewelry). Run Visions for mats and use those to upgrade rares or reforge your jewelry.
Now let’s look at your skills:
Your six main are probably fine for you now, but as you fix your build and get a ton more toughness, I would switch boar to wolf on the companion skill
I don’t know what passive you have on your ethereal, so this is general:
dump Sharpshooter (it is worthless) and use Awareness
dump Night Stalker (you don’t really need) and use Archery (50% more cd) or Thrill of the hunt