This is probably the first time you've written a fanfic, right? I'll be fair here and say it's not awful but it's not great either, it's actually between bad and meh, sorry. I can feel a bit of personality in your MC, but that's it and nothing more, to be honest you rushed things too much and I hardly feel the impact of events, your MC doesn't seem to feel either.
By the way, the only one that can be called a character in this fanfic is your MC and that's for very, very little and that's worrying. This happens with a lot of new fanfics writers, these authors are so focused on making their characters interact in some way with the cannon story that they end up doing everything in a hurry, and then they want to go straight to the next point of the story, you can imagine how it ends, right?
If you like writing fics I suggest you take it easy and pay attention to your story, compare it with others you really like and see if you are satisfied with your work, if so, well, keep going, if not, take more time to polishing it.
I also suggest some character development arcs, if your MC is someone who just gets it right, it gets boring to follow her story, make her fail convincingly, create flaws for her and let her overcome them! Of course, you don't have to kill anyone or anything like that, but a few defeats build character.