The 6th step—the 3rd of the trio that constitutes the ‘meat of hackquisition’—is listening to Spanish, say, while reading in Spanish. It’s like watching a movie with the hard-of-hearing subtitles (except that that would be too much like karaoke; having the whole page of text to look at encourages better scanning and skimming).
You cover a lot of ground at speed.
I read recently that the written form of a language only serves as a reminder to those who already know the language. So I try to ‘lean’ more toward listening than reading when I do them simultaneously.