If your able to, get her a miraculous medal to say " oh Mary conceived without sin , pray for those who have recourse to thee" - our lady promisee GREAT GRACES for those who say it.
Wonderful you can get her a scapular
Theres also a powerful prayer for the dying jn the pieta book, it was prayed over a pope who sinned a lot and they saw he went to heaven
It's starts with .... Lord Jesus Christ! Thou son of God and son of the virgin Mary, God and man! Thou who in fear sweated .....
It's powerful , if you keep saying it, I will say it for her