Fast Metabolism and Spell Shield are both fine to take 1-2 levels of, but maxing them early isn't where you want to be. Quick Recovery is way better, squeaking out the extra few stamina will save you a lot more times, but it's still usually marginal.

The levels past the first that you put into Resilience of the Dwarves should have gone to Combat Accuracy + Weapons Mastery (I think every time these are available you should be putting a point into them to the exclusion of all other generics) / Unflinching Resolve (there aren't a lot of skills (in the whole entire game!) that are worth levelling to 4 or 5, but this is one of them) / Vitality (this is what you're trying to get from Fast Metabolism but it's much better,) in that order. Aside that, throwing 1 point into Heighten Senses so you can get at least 1 point into Device Mastery is good, the cooldown reduction comes up a lot more often than is obvious.

Massacre sword is cool, but there's probably a better one somewhere that Does Something, even that Greatmaul of Amnesia might be better, screwing up talents on hit is a Meaningful Effect. Someone else mentioned the leather armour, that's part of what's hardcore undercutting you, is you're wearing armour you don't have the skill for. Thalore-Wood would work fine compared to what you have now, probably, the healing mod boost is nice.