All my prayers for you and your family. I am not married; but what has been suggested to me in difficult times from my sponsor in AA is to do exactly as you stated one day at a time, acceptance, and living right today. In particular she asked that I work the 3rd step prayer which is as follows:
"God, I offer myself to Thee--to build with me and to do with me as Thou wilt. Relieve me of the bondage of self, that I may better do Thy will. Take away my difficulties, that victory over them may bear witness to those I would help of Thy Power, Thy Love, and Thy Way of life. May I do Thy will always!"
And to read the acceptance pray on pg. 417 in the AA big book. Not sure if you are in AA but if you google AA Big Book it is online. Hope this helps you.