I agree fully with above! See an Avian Vet As Soon As Possible.
Regarding the two known issues; the twisted feet and the Beak 'twist.' They are approached separately regarding their effect on a long life.
- A Parrot that can move about, and roost is something that can be dealt with by adjusting the cage, selection of perches, toys, etc... Web search Handicap birds and/or Handicap Parrots. You will find a ton of information on Loving and Caring for Handicapped birds. You having at least basic DYI abilities will help greatly in being creative in meeting your Parrot's needs.
- A Parrot that has a deformed Beak requires an Avian experienced Vet! The Beak, as you know, is the primary source for the Parrot to feed itself. The positioning of the upper and lower structures is critical in that ability. The Beak structure continues to grow and if not attended to regularly, the deformity can become much worse. Seek the services of an Avian experienced Vet ASAP!
Please advise if you have a Certified Avian Vet or a Avian Qualified Vet in your area.
FYI: There is the possibility that your Parrot may have other 'hidden' issues and your seeking professional help will be very important to the health of your Parrot.
Also: Regarding your statement: "positive theories about possible outcomes for her..." Without the on-going support of an Avian Professional, the issues with the Beck could become life threatening, as the Beak will continue to twist until your Parrot can no longer feed itself. At that point, you will need to feed your parrot a formula based diet. Your creative cooking skills will become very important at that point.
I cannot stress the importance of you obtaining Professional Avian help ASAP!