Hi Sally! Thanks so much for your concerns and reply. I just fell asleep earlier and now check her seems ok , she was sleeping. Sorry I took that pic in a hurry because don't wanna scare her much. I placed her in bathroom above the counter , but covered tissue protect the seeds spill everywhere hehe.
I don't even wanna catch her might hurt more

but it's not bleeding under her beak, I don't think her lower beak is missing, but swollen under her beak and neck area. I know she usually with scissor shape like beak but I trimmed little b4 and recently I didn't trim much, is that the reason cause this happened? She can't eat daytime with mouth opened and clicking sound. Nighttime I heard nothing no clicking, but her mouth still opened little and able to hide the beak to her back and even perch ok.
Sometime she came down on cage floor to sleep, I just worry if tomorrow she will be able to eat, I never know how to feed adult birds, really hope she will be able to heal on her own. I got heated lamp for her tnite so keep her warm and with more energy. I'll observe her tomorrow but, looks like she can't eat properly today. Any ideas I can do to help her eat something without wound her beak?
Thanks again for your time! Praying for her...
she still perched on the swing toy tonight, but I'm afraid if she used all energy before tomorrow if not eating

can I put calcium powder to her water? Will that help some nutrition if she couldn't eat?:(
The pic not so clear because the red lamp I used and don't wanna wake her up by turn on the other light. Hope you get a pic of how she is doing now.
David