Thank you all SO much for responding to this quickly, it really means a lot to me.
Fortunately, we didn't have to take her to the vet after all. My dad, whom she is very fond of, got back from work yesterday and she immediately began to act more lively. She didn't eat/drink much for dinner last night, but she was acting normal this morning and is back to eating; she just scoops her food up really quickly and chews it farther back in her mouth rather than grinding with her beak tip. She isn't playing with her toys, but she is talking a lot and moving around.
I looked at her beak chip again and I don't think it was very deep because I can tell that it's already healing; it's whitish-grey now and I don't see any red anymore.
I will be sure to keep an eye on her though, and I'm glad she isn't playing with her toys because I don't want her to damage it again.