I can not wait for my aunt to become forgetful and not remember her way to my house

One less thing is a good thing in that area!!
Medications side effects are different with each person so don't worry until you need to, and once your body adjusts to the med the side effects can lessen and not be a factor at all . So keep trying Till you find what is best for you.

all the best and many pain free days wished for yous.
Peace to you both.
BMW