Hello!
We do have flashcards available to help you get a sense of the content on the exam. You can fill out a form to receive those here: https://cloud.connect.isc2.org/cgrc-flashcards
I would also suggest getting familiar with the exam outline, to identify which areas you think you need to spend more time on during your preparation: https://www.isc2.org/Certifications/CGRC/Certification-Exam-Outline
There's also going to be a webinar next week (April 14) https://www.brighttalk.com/webcast/260/576171 They'll go over certification requirements, the domains, self-study resources, training options and more to help you build confidence so you’re ready on exam day. If you can't attend live, you can register for it and you'll get the link after to watch it on-demand.