It is very tricky to change someone else’s behavior or attitude. Why? simply because another person has its own self will. Anyone has the power and right to decide for themselves, so when you want to change someone else, what you are doing is overriding that person’s will.
This is why it is much better to change your own behavior and perception rather than change the other person. You’ll get much faster simply because you have a greater power over yourself than over someone else.
If the person wants to change and asks you for help, that’s another story, but I understand this is not the case. You can help someone by waking up her desire and natural life power. Anything which would look like control or forcing from you would definitely be counter productive and end working against you.