A problematic stage.

[Rustweaver]

Well I'm at lvl 28 on a warrior. I've been doing night mare church and witch runs a lot to get my stats up with elixirs. My problem now is I get practically no exp until I attempt Nightmare/hell... I lost my helm the last time I went down there.

My gear is quite... pathetic to say the least. Where is a good place to try and find decent warrior gear before nightmare/hell?

Here is my current set up:
All items are legit...

My best item being stormshield

I'm using doombringer but a another player has let me use their King's sword of blood for a time

blessed plate of the stars 74 def +9 to all

Jade ammy of stars resist all 28% +8 to all

ring1: +54 life +48 magic resist

ring2: +52 mana +25 vita

Helm: I need to buy one since I lost mine.

Yes.. improvements are needed but besides the gift and the borrowed sword... everything else is self found and I expect the rest of my gear shall be as well. Another problem I'm having is that my killing ability is so non-existant that in coop I'm getting little to no experience. But I cant solo nm/hell... suggestions please.