It takes more than a day to turn them around, it took a couple of weeks for our girl to turn around, even so she submitted to me upon the intervention as I called it to get her to stop attacking my husband.
Again, you have to allow her to come to you; if she doesn't then consider preparing her for release. I realize this alternative is sad for you, yet it isn't all so rare a late bloomer coming into her own does this.
Again, it may be hormonal; if so waiting is all you can do to see if she decides to come to you. For this you don't want to stare at her, that is just for giving her a talking to, to show you are dominant, not her. Again, give her space, do not use a high voice, low tones, and do not feed her by hand period, as your hand to her is competition. Believe me when I share that if they are eating you don't want to put your hand near a more aggressive squirrel, with or without food in it, as they likely will assume that you want their food even when you are offering it to them.
If you don't have a a larger cage, considering providing her with one, as being cooped up where a squirrel can't retreat from you leaves them nothing left but to attack to defend their territory when aggitated.
When putting her food in her cage you can use a water mist sprayer if need be to move her way from the door and your hand; just give her a bit of a sprinkle, not a hard shot by any means. Repeat if needed to get her to move back.
Again, don't feed her nut in the shell, save for one a week (hazelnut) to support her keeping her incisors worn down. More more than 1/2 Tsp. chopped nuts daily, and organic, for the fumigants that are used on conventionally produce nuts are also neurotoxic which promotes an excited state of mind.
Feed baked squash without the seeds, 1/2 Tsp. twice a day. This source is higher in magnesium. which supports a calmer mind and better bone density..
Increase magnesium in her diet by including a supplement of the following:
Magnesium Citrate powder from Frontier Naturals (this source has no additives).
https://www.amazon.com/Frontier-Magn.../dp/B000UYC3MY
Begin by adding just 1/64 Tsp. (you will need mini teaspoon set from Norpro, or another brand. After three days add an additional 1/64 Tsp., splitting the amount AM and PM. Wait 3 days, which if by then the stool has not softened, then add once more an additional amount of 1/64 Tsp. making a total of 2/64 Tsp. daily. Add each 1/64 Tsp. to one of three meals to spread it out.
If then by three more days the stool still hasn't begun to softened, then continue to make the same increase of (1/64) Tsp. in addition to the present total, every three days till the stool begins to be just a bit watery, not talking diarrhea, or noodle like. When you see the stool soften a bit, then immediately back down the total daily by 1/64 Tsp.. If you see the stool begin to firm up then hold the amount as is. If no then again reduce total measure of magnesium citrate by 1/64 once again till it does.
It takes the bowel takes time to adjust to an increase in magnesium.
Then after
If so then increase the total daily to double 1/32 Tsp. splitting the amount added to the yogurt, or baked squash by 1/64 Tsp.. If by then the stool hasn't begun to become a bit watery, add in an additional 1/64 Tsp. and again wait three more days.