Check and improve the Wikidata tours (interactive tutorials). Do they cover the things newcomers need to learn?
https://www.wikidata.org/wiki/Wikidata:Tours
Plan for more tours: https://docs.google.com/presentation/d/15S88_AoiZVAdyDz3tfX6G9m3t3pIgZGjc5_f1mP4pB4/edit?ts=5874ecea#slide=id.p