I prefer to describe soundstage in IEMs and Headphones as a "holographic" effect, I think it describes the feeling very well

Stop wearing them, and let your ears rest until you feel like they've essentially fully recovered.
You could try other eartips such as the Spinfits or Springtips, but make sure to not "man it out" because that's just how you hurt yourself for no reason

Bought the 7hz Timeless AEs and I am honestly convinced I'll never need anything better because they somehow fit my ears perfectly and are super comfortable all while having a perfect sound signature + technical performances for my tastes. The fact they fit my ears so well stop me from wanting to try anything else, it's kinda like I found my perfect pair of shoes, I'll wear them out until I cannot anymore!

I can only speak for the Timeless AEs but they sound great out of my phone's headphone jack !