there is nothing that divine Majesty will not believe concerning itself when lauded to the skies! - Juvenal

You should pray for a healthy mind in a healthy body.
Ask for a stout heart that has no fear of death,
and deems length of days the least of Nature's gifts
that can endure any kind of toil,
that knows neither wrath nor desire and thinks
the woes and hard labors of Hercules better than
the loves and banquets and downy cushions of Sardanapalus.
What I commend to you, you can give to yourself;
For assuredly, the only road to a life of peace is virtue.

Duas tantum res anxius optat, Panem et circenses, by the Roman satirist Juvenal.

while your mother in law still lives, domestic harmony / is out of the question.