POE 2 is to hard for me and because of this no fun

I have a playtime of more than 670 hours on POE2 and more than 6.500 hours on POE1. I am not a good player. But I think last season and this season, you need to have a perfect build to have progress and fun. I die at the hands of all kinds of opponents and make only slow progress.

Is this only my problem, or are there any other people with this experience? What can I do to enjoy the game again?

Is the campaign to hard? I mean that one boss in the end, arbiter of whatever, is probably to hard for most players since it is only one portal and so on and you need to find all kind of stuff in the boring endgame to get to it, but if the cmapaign is to hard maybe you don't have a proper learning curve or you need some advice for your build. From my experience they nerfed the bosses quite a bit. The game felt way harder in december...