At various points, a vet (and then realized I would only want to see cute happy animals, not sick ones), a nurse (specifically an Army nurse- I was in a M*A*S*H phase- before I realized I hated science classes), or an actress (before realizing that I can't act).
When I was a little older, middle-school age or so, I'd have been fine as either President of the US or a Supreme Court Justice. I had high hopes for myself, clearly.
My interests veered by the end of HS to international relations which I am still studying but with no specific end-goal in mind.