I see. Thanks for the clarification. I for some reason thought you were talking about namaaz because you mentioned worship etc. Khair if this decline in spirituality isn’t interfering with her faraiz as a muslim, there’s nothing to worry about. She just needs time I guess so let her be because spirituality isn’t something that we can build for her, it comes from within.
And yes you’re right, we all go through ups and downs, sometimes when we see the injustice all around us, sometimes when we lose a loved one. We’re only weak humans, may Allah swt strengthen our imaan, Ameen.