Try doing timed sections to build your stamina. Maybe one RC one LR then slowly do more. Your stamina will build up as your brain adapts to it. Give yourself grace to not get all questions timed. Aim for 15/25. Then 18/25. Then 20/25 and so on.

I knew A was certainly wrong. But D seemed too vague so I picked C. "superior chess players have exceptional memory for configurations of chess pieces, but only if those configurations are typical of chess games." I thought it was saying that they're good at remembering the moves if the game is typical and not particularly challenging.

I knew B was wrong. But I completely overlooked C and chose D. bc even though I didn't love the wording it felt like that's what it was doing

This reminds me of the red admiral butterfly question.