This is one of the reasons I have a hard time getting on board with the "PoE is the best ARPG" train. The learning curve is pretty high, and if you naively try to play the game like you would any other ARPG you'll find your character sucks bigtime.
Also, IMO, the core mechanics of the game are simply less engaging due to the model of 99% of your character development being passive attributes around a single hyper-optimized skill. It ends up being more like playing a spreadsheet than playing a game in the sense that there's no diverse selection of skills that you're strategically choosing between on the fly. Troubleshooting your builds gets hard at the high end, too, without a lot of experience, since the gameplay response is so fast that you're either exploding entire screens of enemies at once or you die instantly to something with very little chance to react and very little feedback about what you did wrong. Even if you know your build is, for instance, weak to certain enemy modifiers that still barely helps you because the game speed and UI are such that it's practically impossible to inspect and enemy for attributes and then decide to avoid them.
Don't get me wrong - PoE is still a fun game and I still play it. It's just not the end-all, be-all like it can be hyped to be.