Thank you for your question. It is a very good question. I also face this kind of problem in my life. Now I am trying to read books with the movement of my mouth (silent most time), I think it helps.
口语一定要有一个不断自我纠正的过程 我坚信这一点
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it is good to have a conviction, but it is important that conviction be backed up by evidence.
so, the question is where is your evidence for your conviction?