At this point, it isn't too bad, but unfortunately, their beaks tend to get worst as they grow. She'll most likely have a severe crossbeak and will mostly need to be tube fed as an adult.
This was my crossbeak who had about the severity that yours is, but as an adult:
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She did well living like a normal chicken living with a normal setup with the exception of her beak getting filed down every 2-4 weeks. During the summer months, I also had a deep pan of water for her, though the regular waterer was still served her fine. (I had a big base waterer.)
For any crossbeak, I recommend a deep water and food dish, and for the severes, I recommend a mash that they can throw their beak in and still get grain without it falling out like the pellets.
For further reading (and information concerning tube feeding), I like to share this article because it's quite helpful:
Caring For Cross Beaked And Other Special Needs Chickens Including Tube Feeding Techniques