This is something I’ve done before, in more or less the same form used in Stoic Week. I used to keep a journal in which I examined my day and I’d read a passage or two of either MA or Epictetus. I’d also rehearse the following day, if I anticipated it would be challenging. More recently, it is something I’ve only done occasionally.
It is something I like doing, and I’ve resolved to make an effort to continue to do it on a daily basis. But, honestly, I can’t say how much it helps my mental wellbeing, whether it makes me a more emotionally stable or a better person. I just find it a satisfying thing to do, and it helps me feel my life has meaning.