Question: Do I think more highly of myself than appropriate?
The hard answer: Yes.
I have been reading Proverbs in the Bible. I have also been reading some business books. I have also been thinking about my relationships and interactions with others. I hate the feeling of realizing my own immaturity. It is good that I do realize it, learn from it, and develop better habits.
Maturity is a long term process. Hopefully I am still maturing in my 90s. Yet there come times when I say things, or do things, and all too often think things that I know better than to say or do or think.
Sometimes we need to look at ourselves and really, honestly evaluate our thoughts, words and actions.
The truth will set you free. Masking over the truth through willful ignorance and egotistical thoughts does not lead, especially in a positive direction, to more productivity, creativity, and deeply committed relationships.