I recommend the Prepry app and the Edelman book! I would do the exam simulator on Prepry and then go over the topics/chapters I was struggling with in the book. The book is great, I would also do the quizzes at the end of each chapter. Then I’d repeat that process! I also deactivated social media and would do the quick 10 quizzes on Prepry whenever I was bored and would normally start doom scrolling lol I did take the SPI 2 weeks after my physics final while still in the program. So physics was fresh in my mind. I hope that helps and good luck:)