Hi, Does anyone else find themselves constantly looking back at lectures notes from an undergrad course, old textbooks, even high school notes to supplement their content review? I do this for almost every subject primarily because I want to be thorough but I feel like I'm wasting too much time on it. Sometimes it's useful to clarify understanding of concepts but at other times, I can't even let go of a equation without seeing the derivation. I'm enrolled in the TPR course, are the books they supply 100% sufficient? Thanks.