Dex is not just meant for rangers, as it raise range defensive as well. If you are building a critical warrior, dex is needed as well. Over abuse on stats such vit wont bring you any good in long, as you can find accessories such as rings and necklace which will provide you will hp and mp you need. Always reserve some stats points for your stat planning later. I can roughly give you some stats references from my old warrior at lvl 35. The stats are achievable by using charms and stats from gear only.
Hp:807
Mp:497
Vit: 50
Spi: 20
Str: 96
Dex: 60
Int: 96
As warrior, passive skill which raise base damage are more important compare active one. If you are on the latest patch, you normal damage will deal some aoe damage as well. Max out passive skills which benefits you such as weapon mastery and bleed will give you better advantage. When you base damage increase, you skill damage will increase as well.
You level should be usually around the range of lvl 18 to 20, if you just start off from getting your battle tower. I think main reason on your fast death is most likely on your armor defense, as well as necromantic creature. A well equip creature can easily tear down those goblins and imps in fjord. I was on medium difficulty mode during my warrior, where I use a mage type creature as my choice. With a rank 6 or 7 head and hand parts which boost magic damage, my creature can easily instant ko any imp or goblin with its magic blast, which actually help a lot during the fight. And make sure you had good armor ratings with your armor. With good armors, you wont die easily with the help of some potions.
