So, I've been playing Diablo 4 pretty much the whole day and it's really fun. I completed Act 1 hours ago, but I'm still playing through side content in Fractured Peaks. The past few levels I have started feeling really weak though, and I don't really know what to do about it.

I'm currently a level 27 Barbarian and I've found myself struggling against elites whereas previously, maybe when I was around lvl 15, I was just dominating enemies with little to no effort. I'm playing on World Tier 2 and have no intention on lowering the difficulty, because there has to be something I'm doing wrong. I've also gotten kinda unlucky with my legendary drops, as I've only gotten helmets and amulets with lackluster powers.