>>283285783
In the scene-0 side story, which people still argue if it's canon or not for various reasons, homura is seen failing and getting her shit kicked in several times in various timelines, learning from it, and planning her next time loops. She writes actual flowcharts on how the timelines behave with each action taken and memorizes them carefully as she can't bring anything with her when she loops.
I still haven't finished reading scene-0, as i'm reading it in the magia exedra gacha game and i'm waiting for updates. While I really like scene-0 as a whole, one thing that irks me about it is that it downplays homura's struggles by adding mabayu. Mabayu as a character is very interesting, but she's also severely OP magic-wise, being able to see the future, turn invisible and edit people's memories. She is also immune to homu's timestops and timelooping, and she assists homu in several ways, one of them by predicting the future of witch battles and commanding homu how to attack optimally.