Hey! In these cases, I think the methods you’re studying in just aren’t effective for you. We all memorise things in different ways and sometimes identifying those methods can take a while. However, these are a few things you should try:

• find out what kind of learner you are - if you can tailor your studying to the way you learn, you’re going to get much better results from your study. Try doing this quiz. This is a really awesome infographic that can provide you with some tips once you know the way you learn. That way your studying is going to be much more effective since it is actually going into your brain! For instance, I find copying an example the best option but I don’t do so well if I’m just hearing something!
  
• test new approaches - so you’ve noticed, your current study methods are proving as useful as they should. For this, I’d recommend having a look at alternative strategies. This could be flashcards, summary powerpoints, mindmaps, essay outlines, or YouTube videos. Sometimes when you’re trying out something new you can be more engaged. 
• paraphrase information - try avoiding copying information word for word, especially if you’re typing! If you can process the information and come up with a summarised version, you’re more likely to remember your own words.
• handwrite your notes - by writing things out you’re giving your brain more time to process the information and therefore it is being more absorbed.set up a study schedule over time rather than trying to cram - you’re better off doing an hour of study of a topic over a few days or weeks compared to trying to memorise everything in 4 hours.
• talk about it to someone - ask a family member or friend to test your knowledge. Try to explain the concept to them without your notes. If you can manage, awesome! If not, you’ll be able to see where your knowledge gaps are. Study groups are awesome for memorising since you tend to go deeper into the content. 
• use mnemonic devices - this could be making a story, an acronym, or rhymes!get some sleep - sleep is an easy way to boost your remember. A lot of people recommend reviewing notes or flashcards before bed!
• use a colour code - I love colour coding my notes! It helps me visualise my notes when I need to remember things!
• follow the curve of forgetting - You can’t be expected to remember every single thing from a class. Here is a graphic on the curve of forgetting. As you can see with the blue line, most of what you learn is forgotten if you don’t review it. But what the other lines show is how is can be retained if you review consistently. Make an effort to review your notes after class, after a day, after a week, and after a month. I have a free revision checklist printable here.
  
• practice in exam conditions - pretend you’re doing exams and have to recall the information. This is a good way to test what is and isn’t being memorised. If you really struggle, you can do an open book and work from there.
• use the pomodoro method to improve focus - when you’re distracted during studying it obviously lessens your ability to retain information. (Here are some tips on removing distractions.) I have been using this printable and my Forest app to monitor more study sessions. It has been so good for motivation and not letting my mind wander off task.

Hope this helps!! xx