I agree with the above, upgrading weapons makes a lot of difference because the game focusses on not taking damage in the first place by blocking or dodging over minimizing damage taken with armour. Really, the most important stat on armour is Poise which just lets you "TANK THROUGH THE PAIN!" and smack people around instead of staggering all over the place. It's why I gave you those tips on poise to weight ratios before, dodging while having decent poise is really the mathematically optimum way of playing the game. Blocking eats up a lot of stamina and locks you in place while you absorb the hit so while it can be good it's really bad against some enemies. Parrying is amazing but most late game enemies cannot be parried and even the ones who can be, it's a feast or famine system where either you 1shot most things or, more likely, you eat a load of hits.