There were women magicians in late antiquity and the early Middle Ages (see the Aramaic Babylonian incantation bowls etc.) and there was a famous late-antique female alchemist called Maria the Jewess. I would be surprised if there weren't also practicing female mystics, although I don't know offhand of decisive evidence for one. If any readers do, please drop me a note. (I touched on the question here some time ago.) Back in first-century Egypt, the mystical Therapeutae included women.
For PaleoJudaica posts on Sefer Yetzira (Sefer Yetsira, Sepher Yetsira, Sefer Yesira) see here and links (cf. here).
Cross-file under New Book: Jill Hammer Return to the Place: The Magic, Meditation, and Mystery of Sefer Yetzirah (Ben Yehuda Press, 2020). For more on Rabbi Dr. (and Kohenet) Jill Hammer, see here.
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