One thing you could do is write in the notebooks section using the vocabulary and grammar structures you have been taught. Then when you get corrections you could use the answers section to ask any questions about your corrections. Then re-write out another text using what you have just learnt while adding in new vocabulary. Another approach is to use a site like "Memrise" to write up flashcards.

@Casey Thanks for the suggestion! I think that would be super helpful. I'll try it out!

apply the very your notebook in real life.