That sucks to not pass! What type of learner are you?
https://www.wgu.edu/blogpost/3-types-of-learners-which-one-are-you I cant sit through a Youtube video (and have trouble with watching movies) but I can read and comprehend pretty well. So if you are like me you will probably be successful with my strategy. Remember nobody plans to fail, people fail to plan!
For section 1 I read all the recommended reading and watched/listened to webinars on the ASLA website for SITES AP Maintenance, as the materials for maintenance was pretty light in the recommended reading. I am currently reading through all the required reading for the next 3 sections. I make note cards of the key terms (found in the Orientation Guide on CLARB's website for each section) and alphabetize them by the key item. Once I am done with all the reading I comprise 1 note card for each key item with all the information from each textbook that addressed that key item (this is where the Table of Contents and Indices come in handy). I am constantly reviewing The Guides to make sure that I am studying what is actually testable. This averages about 1 hour a day. Good Luck to you and I hope this helps.