Does a small amount of water that enters the inner part of a woman's vagina during ablution (istinja') invalidate wudu'?

The questioner's suffering and spending half an hour in istinja (washing after relieving oneself) is unjustified. Wudu (ablution) is often nullified before or by it, and it is illogical for her to perform istinja without her wudu being nullified. This overexertion and her fear of the water remaining from istinja being impure is an impermissible form of extremism. A woman is not required to wash the inner part of her vagina; washing what appears when sitting is sufficient. The obsessive thoughts she experiences regarding the impurity of the water discharged after istinja are from the whisperings of Satan and are religiously excused.