I keep it simple. Understand the concept, and not memorize. If memorization is ever required, use mnemonics. Practice as much as you can. Relax between studies. Stick to healthy foods, thoughts and exercise.
There are no alternatives to studies. And, there may be multiple ways to solve a problem. You may not be able to solve all the problems you come up with; but if you try enough, you will achieve success. I have been telling my students this since I started tutoring when I was in a college.