Vet check required last week. Plain and simple, this problem didn't happen over night, it's been ongoing. Go to the vet and put her out of her misery. Or re-home her. Did you only just realize these problems last week? It's clear that you didn't do your research before purchasing this animal that is now suffering. If you're gonna keep her, do what has been stated by the other members, get her everything that she needs and more and learn from your mistakes.
Even with all that she might not make it.
Even with all that she might not make it.