You can build up the ability of 'receive and accept understanding' through reading, speaking and writing dialogues which have some extent of length(no matter fields).
You can build up the ability of 'produce and create expression'. State logically (separated fact and opinion) using some paragraphs in fields which you have interest or closely topics.
The ability of Japanese that you use in daily life is linked to 'Academic Japanese' that you need to enter an university.