Most of the People have a misunderstanding about Islam and it’s teachings related to Material world and Material life. Islam says your house should be wide enough your means of travel should as if a person looks should not turn away his gaze, Islam says your clothing’s should like when you enter in a group people just look you who are you. Imam Ali (a.s) Poverty is a biggest death
Holy Quran says:

وَسَخَّرَ لَكُم مَّا فِي السَّمَاوَاتِ وَمَا فِي الْأَرْضِ جَمِيعًا مِّنْهُ إِنَّ فِي ذَٰلِكَ لَآيَاتٍ لِّقَوْمٍ يَتَفَكَّرُونَ

And He has made subservient to you whatsoever is in the heavens and whatsoever is in the earth, all, from Himself; most surely there are signs in this for a people who reflect.(45:13)

What does it means?? All these bounties of Allah are for Non believers are for Atheists or they are for transgressors?
Of course not all the bounties of Allah for a true believer and for a true Human. So it doesn’t mean if a person becomes religious then he/she has to live a life which worst that a life of unbeliever.
But Islam says “all these things are for Human being not that the Human are for them” meaning we should not be the slave of these thing rather we have to make them our slave and whenever and wherever we wish we could use them.

First try to make her understand these facts of life and give her proofs if she is not convinced, give her time and you should have patience too.

Please watch these short clips:
https://youtu.be/IOcbTU3w_6w

https://youtu.be/3u4eZD2HzzU

https://youtu.be/0lU167GWCu4

What you have planned is the best please go ahead in your plan Allah is the best helper and the Best Planner.
May Allah help you and guide all of us to follow TRUE Islam.