Len,
I am not alone in this this thinking.
Of course you aren't. No religious belief of any sort is restricted to one believer, but that has nothing to do with the truth of the belief.
CS Lewis, regarded by many as one of the most prominent Christian writers of the modern era devoted much of his book, "Miracles" to this subject, concluding that conscious thought processes are supernatural.
I have read some of CS Lewis, and find him no more convincing than you.
I came to the same conclusions myself over forty years ago before reading any of Lewis's books.
Then you made the same mistake as he did, in believing that free will and conscious thought are sourced in the supernatural.
There is a perfectly natural explanation for both, making the "supernatural", if such a thing exists, totally superfluous.