I stopped reading books about 10 years ago and I don´t advocate in my own teaching that I know everything there is to know because I really don´t.
However when you take into consideration that the end of knowledge brings about a state of infinite wisdom away from reasoning, a case could be made assuming that I am in fact someone who has a certain type of wisdom that transcends the normal boundaries and limitations of the human mind, I would say I do in fact posses a type of knowledge that is more precise and refined than thought.
In essence, knowledge is mind, thus by transcending mind you are in fact transcending all knowledge. But there is only one true knowledge, it´s called self knowledge. This type of knowledge is what the Hindus call Brahman, what the Buddhists call enlightenment, what christian mystics call Christ consciousness.
When you get to the point of knowing who you really are you have arrived at a place that has no confines, liberation truly frees the soul from the burden of thought.
The end of growth if you can imagine such a thing happens in enlightenment. After enlightenment your growth ends because it is truly the final graduation. It´s learning everything there is to know
about one´s life by destroying thought and the person who thinks.
Such a person on the whole does not posses any motivations to become a better a person because he is being guided by a force much larger than himself which he cannot control through will.
It sounds arrogant to say you know everything there is to know about life, but it´s fairly accurate and the simple truth.
So I guess my answer would be I´m not currently working on anything to better myself.