Sorry for the super late reply, I was ill for some time so I could only lurk until now. I was also planning to post a series of video guide to better show my suggestion. On to the topic, I think you need to replace your sword with the Saber since you've unlocked Weapon Knowledge trait, this trait doesn't give any additional stats other than the ability to equip high quality weapons, which are a gigantic upgrade over the standard weapons.
Seeing your build and the way you go about playing the game really reminds me of the first days I played this lmao. Now that I'm a veteran with more than 200 hours of playtime, there are MANY stuff I wish I knew when I played as a beginner, so I often do a New Game to test all the stuff I've learned, and I found out that this game is a lot easier and more fun than it actually is IF I knew some of the important hidden mechanics that the game and the wiki didn't tell me.
Instead of going over some tidbits of advice, I'll post a guide regarding QUICK REBIRTHING FOR BEGINNER, one that is focused on Abomination race (this one I managed to finish at least). This is the advice that I mainly suggest you to follow since you're not too far in the game (I hope. Although even if you're already midgame/endgame, this guide should still apply). It's gonna be long so I'll put it in a spoiler below
