What are my grammar mistakes in the following simplification?

Some special bromidic qualities or tendencies or ways are as follows: Firstly, a Bromide cannot change himself _he will always be an ordinary , dull and boring person . His mental make-up, the arrangement of his brain cells is such that he will always have same ordinary , commonplace ideas. His mental or psychological reactions to life are automatic and common. He can never think unusually. "His intellectual processes are automatic_his train(series-sequence) of thought can never get off the track(can never be new or unusual)."THE SIMPLIFICATION OF ABOVE PARAGRAPH ARE GIVEN BELOW. What are my grammar mistake in this simplification? Some specific bromidic qualities or tendencies or habits are as below. First, a Bromide can not change himself. he is always a dull and boring person. his mental structure and pattern of his brain cells are such that he has usual and ordinary thoughts. His mental and psychological reactions about life are automatic and usual. He has not extra ordinary thoughts. His intellectual processes are automatic. His train of thought can never get off the track.