Well, keep it quiet till you're 18 then, if there is no real dialogue to be had with her about it.
Unless maybe she would be receptive if you told her what the Quaker meetings are actually about.
There is no such thing as mt-ACA. There is most recent common ancestor (MRCA), there is the ACA point and then there are mtMRCA and Y-MRCA, all of which are different things.
Like, I can see why you follow the reasoning there, but actually a population is always a pool, and there would always have been multiple genetic lineages going on. Maybe look into the Identical Ancestors Point?
I dunno y'know, I think there's traction to it. What we call a mystical experience can still be said to be bound in time and space. Limited. So I think it can still be termed an experience of a sort.
By definition, I think an experience occurs within consciousness. But I guess what we call a mystical experience can be pointing us to what we are before we get into consciousness.
Surely it depends on the descriptive and associative habits you've built up?
As for the OP - really depends what you call a prophet. One woman I saw once described a prophet as 'someone who speaks from the spirit', so yeah that's a mystic. But if it someone who is a channel for prophecy, then...