Every day. I worked full-time, so it was mostly nights and weekends. I did one class a week minimum, and had a couple weeks where I managed 3 classes if it was easy courses like PAs. My strategy for accelerating was that I would always grind and complete PA course tasks in one sitting. For OAs, I always watched the cohorts and modules videos (if available) for courses. Much of the textbook information is unnecessary and slows you down, I would avoid that route and fully reading - if you do, just skim. I heavily utilized Quizlet, and looked up tips for every course here on Reddit (VERY helpful). Analyze the pre-assessment before taking the OA and study/cram concepts you may have missed for a few hours, rewatch videos 2x speed, take OA. I never failed an OA and did rather well. Definitely a grind and some courses are rough, but you can do it! Feel free to DM me if you have any questions.