I’ll try to point out some of the things you’re doing wrong:
You have a lot of attunement but it seems like your build is purely melee. There’s no need to level attunement unless it’s a magic build, weapon arts aren’t that important in PvE.
Deep infusions, along with Raw, Fire and some others, aren’t viable mid-late game with most builds, as they add raw damage but remove stat scaling, which is where real damage comes from on complete builds. You should use a scaling infusion like Sharp, Heavy, Refined, even something like Dark if you level stats that scale with it.
Vigor is the most important stat early game, when you respec (which I think you should) take some of those attunement points and put them into vigor, and also focus on an offensive stat.
Sounds like you like the axe/shield playstyle. Most axes are good for strength, each weapon has letter grades in its stats showing how well it scales. I recommend finding something like a brigand axe or battle axe and infuse it with a heavy gem. Then respec into mainly vigor and strength until 40 and 60 respectively, with reasonable investment into endurance and vitality.