Same sentiment, I could listen to like 3-5 ASMR videos/streams for hours, also decided to dig back her PL from Wikitubia, one of the many YouTube inspired wikias, and damn she's fucking pretty IRL, also I can tell, now with the hindsight of her as Elizabeth, how much of her OG persona/indie avatar got transplanted into her current Holo self.
Regarding the thing of feeling like she hit a wall, and now she has the means to go even further, break her own limits, pierce the sky in the heavens to wherever she wants to,
now she can. Hololive (for it's pros and cons) still gives her a lot of leeway and a huge playground to play and test a lot of things, and if by herself she was able to reach 600K, I'm not surprised if maybe a year or two, she reaches the coveted 1M (and even more), same with the other Justice girls really. Plus her CCV was monstrous, a 110K at peak more or less but a constant 100K in her debut, slightly surpassed by Gigi at 120K or so.