Well, just do your meditations.
Tell yourself, that you meditate now and deal with the thoughts and problems later, after you habe finished the meditations (tipp from HPs Maxine Dietrich).
I don’t understand the problem, but if she is a bad influence on you, you should avoid her.
If you are into her and she doesn’t like you back, well then, try to cope with it?
You can check your synastry, if you are compatible you can do a love spell on her.