Looking for a movie, think it came out in the late 90s/ early 2000s about an old witch stealing a body?

I remember this movie from a while back, it was about a girl who
didn't believe in magic and she lived with this older woman or maybe
she was a care taker for her? I can't remember but it was an old
house. The old woman kept playing little subtle tricks on the woman to
slowly make her believe in magic til at the very end she did and tried
to ward off the older woman but failed. In the end her body was stolen
and she was stuck in the old woman's body. I did a google search and
came up with an old movie from 1981 that this might be based off of
called Alison's Birthday. Any help is greatly appreciated, this movie
came up in conversation and now it's bugging me that I can't remember
what it's called!