they say 'You can take a horse to water but you can't make it drink'
I've had a fair bit of experience with this. As people are saying can be dangerous. Not only can she resist. She may hold her position even stronger.
In NLP we have a saying 'put your oxygen mask on first'. I hear it every time I fly. Its so true. If there is a kid next to you, even more reason to put yours on first. What do you think of that?
If you don't have your own mask firmly attached you may run out of Oxygen while trying to help others. If you think you just help that one kid, imagine doing it, and then you see that kids little brother struggling, then another kid. You have to put your mask on first.
Be all that you can be and concentrate on being the best version of you.