Actually, everyone had problems with this mission. I did too, when I played it for the first time. I even thought about using cheats, but they didn't work for me. Can you tell me what difficulty level and version of the game you're playing?
As for your character development, it seems okay. Just remember that instead of Attack, you definitely need Chaos. Warlocks are developed this way – racial skill + Chaos. This is the foundation.
Ravan, I have version 1.0, and I'm playing on Veteran difficulty. So, I guess I need to replay the campaign:(
Added 3 minutes later
Divinora and Ravan, thank you for the advice:)
I'll try, and if I have any more silly questions, I'll come back to you...:o You don't mind, do you????????????:o