Bipolar is not the same like bipolar - there is so huge a variety of possible variations and side.symptoms and different accents on different symptoms that it is difficult or better:
verboten to compare the one case with the other and by the first conclude on the latter.
First step must be, and that is an ultimate necessity, a precise differential diagnosis, to learn what kind of disporder she really has. that will still interact with other characteristics of her personality, and these must be marked as well. And then, not earlier, we can talk about helpful livi9ng styles, medications, therapy.
Bipolarism can be contained somewhat, can be held in kind of a stasis, but if it really is bipoalrism in her case, it most liekly will be with here for the rest of her life. Sorry to say that, but that was status of science when I studied that stuff. Maybe there was progress being made in past years, I cannot say, since i am out of touch with the profession.
Courage, GR!
