If you can play a few hours a day. You can finish this season and the season alter in a few weeks. There is a guide in the formation I made for disabled folks that is incredibly easy to play and only needs 1 finger on the mouse. You can put your other hand in a bag of chips if you like. Guide is titled - Disabled Friendly season 100%. If you can reach pargaon 200 to 400 its doable. 600 is easy and 800 is a breeze.
If you’re unable to reach those low paragon levels given the season buffs experience by 41% then you’re playing far less than you mentioned or not playing efficiently.
However if you don’t like this game as you stated. Why on earth would you play it? Especially on the PTR. I hate Elden Ring with all my heart even though I 100% the ach and beat it 3 times. I then uninstalled it and won’t touch it again but I’m not on their forums and I’ll never be testing anything for them either. Confusion ensues.