Also, eating is actually very important for your brain. So focus on healthy nutrients. Food that has omega 3 acid, for example, fish. Also food that has vitamins, minerals. Don't just be eating all those fast food and junk, it's bad for your brain.
Also, exercise. When you move your body, when you exercise, blood flows to almost every organ in your body, and your brain is not exempted.
So the more blood flows to your head the more you can go there, remove some things, and send oxygen there. And it's also good for retaining information.
Also, be mindful of how you scroll up and down on social media. All that is doing something to your brain. It's forcing your brain to not retain information. A very useful tip, have a specific time that you set aside for social media.
And very important, please focus on the kind of information that you're retaining because they have the capacity of affecting the quality of your thoughts. So please, take care of your brain health.