One of the most helpful resources I've found on learning is the free course Learning How to Learn on Coursera: https://www.coursera.org/learn/learning-how-to-learn. From that, I've found putting what I'm learning to practice, either through projects or teaching someone what I'm trying to learn or writing about it, helps me to remember the best. After that is spaced-repetition through flashcards, using a program like Anki, but it's harder to get me to do that regularly because of my ADHD.
One of the most helpful resources I've found on learning is the free course Learning How to Learn on Coursera: https://www.coursera.org/learn/learning-how-to-learn. From that, I've found putting what I'm learning to practice, either through projects or teaching someone what I'm trying to learn or writing about it, helps me to remember the best. After that is spaced-repetition through flashcards, using a program like Anki, but it's harder to get me to do that regularly because of my ADHD.