Thank you very much, Madgran77.
Another resource that may be illuminating and broadly helpful is www.theschooloflife.com. Chapter 3, called "Self-Knowledge: Growth & Maturity", of its "Book of Life" offers lots of wise ideas to consider. Yes, it is written and presented in an authoritative way at times when certainty is not actually warranted and consensus not yet, if ever, reached or attainable but with this and one or two other caveats in mind there are gems aplenty. Here are a few:
Section 01. The Ultimate Test of Emotional Maturity
Section 12. Why We Should All Think of Ourselves as Sinners e.g. "Good people (do not) abandon manners, kindness, tolerance and modesty."
Section 13 How To Be A Mummy's Boy "After a certain point, mothers become embarrassing and need to be surrendered and denied - not just mothers but all that they stand for ... tenderness, vulnerability and need". This piece could apply to women too who have been used to seeing themselves as largely self-sufficient, independent and emotionally invulnerable but now find this reassuring image somewhat threatened. A postnatal woman who finds herself suddenly dealing with feelings of vulnerability, fragility and insecurity that have been awoken by memories and experiences surrounding delivery and adjusting to the early, challenging phases of motherhood, for example, might feel a strong need to shut out, humiliate or denigrate her mother or mother-in-law because of a subconscious fear of being exposed as "weak" or "childishly needy".
The School of Life would like to see society more generally engaged in discussing what we mean when we refer to progress towards greater emotional maturity and intelligence. Its core message is surely one with which we can all agree: emotional development is a lifelong learning process that should be encouraged.