Level 60 will not give you a functioning adult vocabulary because WK is not a vocab site. It gives you a lot, but you’ll need other resources, as well as just good ol’ encountering them in the wild.
Start making a document to catalogue new useful words you come across.
Also, think about how many words you knew as a child in your own first language. Enough so that you’d never be left reaching to express yourself, and probably never at a loss for comprehension unless you were listening to specialized discussion. That takes many thousands. Welcome to the uphill struggle. (A fun one.)
My impression was that 炒める was a more all-purpose word for “frying.” So, stir-frying included. (Jisho backs that up.) Anyway, it’s included in the core 3,000, and even though it’s not on WK, it’s pretty easy to learn on your own and has an easy kanji to boot (few fires; picture a ring of little flames around a stove burner).