I found (as with many of my colleagues) that we were constantly changing up how we studied - partly because we were trying to find new/effective/efficient methods and partly due to the changing nature of the content we had to learn each week (e.g. certain weeks were focused on several diseases while others would be focused on ethics and concepts, which all require different methods of studying)
I have personally found myself gravitating towards 2 methods of note taking that would make my studying much easier:
1) summary document containing all of the big picture concepts (I couldn't be bothered to sift through several powerpoint presentations and then hundreds of powerpoint slides to just to find something/study it, and plus I found that different lecturers structured their talks differently, which made it even more difficult to follow along and find info)
2) Disease/condition charts that compare etiology, risk factors, pathophysiology, clinical presentation, diagnosis, investigations, management, prevention, etc. - especially useful for weeks/topics that contain a lot of different diseases and you have to differentiate them somehow
I think a big thing for me now is that tests in med school are much more clinically framed so we don't necessarily have to memorize all the small details but rather understand the big picture. Of course there will always be some questions that test factoids but the vast majority are regards to disease presentation, management, etc. So if you really wanted to, you could spend all of your waking hours making super detailed notes and studying every single detail but I found that approach to be overkill and unnecessary (I tried it out for the first few weeks but found that the amount of time put into making notes/studying was not worth it imho).
I know this is cliche but at the end of the day, it really depends on how you prefer to intake information and study and what works best for you. Unfortunately, that means it will involve some effort on you end to experiment with different techniques and methods that work best for you. Give your current studying approach a try and see how well it works for you. But don't be afraid to try out other methods (perhaps some that are less time consuming and allow you to do things aside from schoolwork from time to time)