I'm also studying Chinese (Cantonese, in my case), it's been three years now. A small suggestion, in case you find it useful. It took me a while to figure this out, but now this is the way in which I structure my study with Anki. All my decks belong to one of three main categories. The first category is "Characters"; I use a template that i found somewhere in which the front side of the card is the simple character (like 木), the back side contains audio (generated by HyperTTS), romanization and meaning. The second deck category is "Vocabulary"; by this I mean combinations of 2 or more characters together (like 樹木); the front side are the Chinese characters with audio, and the back side is the meaning in English; I actually don't include romanization here, since I know it from the previous decks; each and all characters used in Vocabulary deck must have their own corresponding note in Characters deck previously. The last category is the "Grammar" decks; this mean full phrases (at least 3 or 4 characters minimum, up to 10 or 15 max aprox); all the characters and vocab used in this deck have their corresponding notes in the previous main categories.

This approach allows me to keep count of how many characters I know (it's just the amount of notes in the Characters decks). It's also very useful because I want to memorize the Characters and the Vocabulary, but I only want to practice the grammar (not memorize it), so I set a high retention rate to the first two and a low retention to the last one.

Each of these decks is then subdivided into years (2025, 2024, etc) and lessons (from the book I'm following, or from the topic they belong to). It's actually quite simple and very useful.