Hello!
I have a Psychology SAC on learning and memory as well next week.
It's really good that you're doing practice questions because I think that's the best way to apply and consolidate your knowledge.
As you've said, there is a lot to remember, so reading through notes is a good side-thing to do as well as it will help you commit those specific details about the concepts into your memory. However, note that this is a little thing you can do but your main revision should be active, that is, including practice questions. I've also found that drawing out concept maps or doing a blurt is a really useful thing to do when you need to remember heaps of information as you're able to link all the concepts together and when you see that they connect, it seems a bit less overwhelming. This will also help in answering questions that require you to draw on information from multiple topics.
Repeating questions/SACs that you didn't score full marks on or ones you're unsure about is really helpful as well as the second time you do it, you'll know whether you actually understood your mistake (or didn't).
Asking your teacher questions you don't understand is another tip so that you know that you're really confident with the information.
Also, this is more of a general thing, but you could target specific areas (in terms of exam/sac/test technique) that brought you down in the last sac, if there were any. This may include evaluating what wrong in the last sac and it doesn't have to be psychology-related things. For example, in the last sac, I ran out of time and so didn't finish the sac and so now I'm trying to figure out why I couldn't finish on time and how I can solve that problem. For instance, I was adding irrelevant, unnecessary info when I was answering questions when that time could be better spent on other questions and I froze up at the start of the sac, taking away precious time. It's good to be aware of these things because sometimes the non-Psychology related things might bring you down and could be the difference in your scores.
This is what I've found that helps me but if I think of more, I'll be sure to edit this post!
Good luck on your SAC!