Gear upgrade suggestions?

[Ishio]

In my sig is my gear. My stats with the gear on are as follows with Bramblecoat:

HP: 728
Mana: 1370
AC: 513

STR: 75
STA: 88
AGI: 107
DEX: 83
WIS: 181
INT: 81
CHA: 70

Resists:
Poison: 20
Magic: 25
Disease: 10
Fire: 25
Cold: 25

What I'm having a hard with is charm killing. I seem to run out of mana way too quickly.

I have about 5k, and various items that I am trying to sell. Can anyone suggest any quests, drops, or items for sale that I should go for to make life a bit more easier?

[falkun]

If you are having issues with charming with 181 wis, you are charming too difficult a creature. Charm mobs that are barely dark blue or are light blue.

[Ishio]

Well the problem I am having is not the duration anymore but more so running out of mana rather quickly. I will snare both mobs, charm using beguile, then set one on the other, 20%, cast cameo, then kill which ever has the lowest health while I kite the other until I can either recharm, or get a new pet.