In other situations in life - before an exam, a speech, or an important meeting - you are completely dependent on the volume of your "working memory" and your emotions when trying to memorize key theses or answers to exam questions. Fear of failure, gloomy premonitions, trying to imagine the future - all this reduces the ability to remember by 30-40%. Worry, uncertainty, fear, self-hatred, negative attitudes - "I won't succeed", "I will fail" - that's what your attention is focused on, that's what you are focused on.
Ever since school, we have had this very bad habit ingrained in us - mechanical rote learning by mindless repetition. The information is retained for 24 hours, and you can actively use it (if you repeat it often), but then it often disappears without a trace into the black hole of oblivion. It is impossible to get it out later, to use it as knowledge. Besides, nobody is insured against a banal "stupor" - nervousness can rush in at the most responsible moment, and all the rote information goes up in smoke. We will return to this topic, but for now let's remember: before you start studying new complex material, preparing a speech or important negotiations, you need to deal with your emotional state, and begin to manage your own emotions.