CYSA+ Study material recommendations

Hello. I just took the CS0-003 Comptia CYSA+ Certification Exam and got a 680. Do you have any recommendations for what to use to study and take practice exams. All I did was take the practice exam provided by A CLOUD GURU and what was in those practice exams was very different than what was on the actual exam. I don't even think there was was like one question on the a cloud guru practice exam that was on the actual exam. I was thinking about using the practice exam that comptia offers but I am not sure if that is actually good.

Also, I was told and under the impression that the exam was 85 questions. But the exam was only 69 questions total. Is 69 questions the right amount for everyone else who just recently took this.