Repot, terracotta pot, one, or two, inches larger than cati, with drain hole.
Use barely dampened, well draining soil.
Wait a week, or more, to water.
It's winter, right ? During cool, damp weather she will go 6 or more weeks before needing water.
Water when soil dries out completely.
She'll need as much light as possible, outside, best, if not to cold.
Right now. Take her out of pot, so her roots can dry out. check for any root rot and remove. Set her, bare naked, in sunniest window you have to dry for at least a week, two would be better.
If any of top is squishy soft, those places will need to be cut away to healthy growth, clean flesh.