Alongside its series, PTS Drama posts complete single dramas and short films from Taiwan's public broadcaster; pick one that runs about an hour. Watch it through with the Chinese subtitles only, then write a short review in Mandarin, four or five sentences: what it is about, what happens, and what you thought. Post it in the comments if you are brave. Type with the Pinyin keyboard built into your computer or phone (Windows, macOS, iOS and Android all ship one), or write in pinyin.

Subtitles in the language you are learning are the trick: you read and hear the same words at once, and your ear catches up faster than you expect.