Wow, I love this so much. Your first sentence is a really good hook, and the whole paragraph is a great world-builder but isn’t boring or a barrage of information. I think the last line sounds like she’s just convinced herself that she’s the strongest, not that she taught herself to be the strongest. (the latter of which is what I think you were going for) Maybe “…and she made sure that there was no one stronger than she”?
I read your first chapter and I love it, I will definitely be awaiting every update!
Here’s mine (and it’s so wack because mine is also about Oblivion; it hasn’t been incorporated yet but that’s the plan):
It was humongous. Zhala peered at it from the small window of her cabin, or maybe it peered at her. It sat looming on what might have been the edge of the horizon, had she been back on Earth, but her depth perception had become nearly nonexistent in space. The foreign behemoth pulsated and throbbed, an ever-growing moshpit of both nothing and everything all at once. Surrounded by an inferno of blazing light, it wasn’t dissimilar to a solar eclipse.