Review
Answer from memory first. Then open the chapter and see what you missed — that gap is the thing that teaches, and reading it again is not.
Nothing due.
Reviews appear here once an action carries a started date. The schedule is absolute from that date, so nothing needs to be scheduled by hand.
A missed review is not a broken streak. It goes to the back of the queue and you carry on — a schedule that punishes a missed week is a schedule that gets abandoned in week three.