This is very easy
I have watched your profile for a second and didn't see anything green. Then I have checked another second for a RoRG and couldn't find it either.
So the next thing you do is act 1 bounties (on normal unless you achieve the exact same speed on a higher difficulty) until you have that ring and then you craft yourself some set items, first and foremost Aughilds.
Excuse my tone but this is rather non-optional