[求助]out of things to practice - what 2 do?

I'm registered to take the test at the end of June and have a question to the big NNs. I should be able to finish all my OG (twice) and XDF practice tests by early june. My question is, in addition to working on the practice tests on the computer, is there ANYTHING else I can use to keep my momentum going? I'm especially concerned with SC portion. I've done well with it so far. But I'm afraid if I don't keep doing it, I'll become rusty.

Besides OG and XDF, what else is best for SC? Thanks!!