You can learn anything, but you may need to change your study habits to meet your goals. Your inner voice can be your best ally. Positive self-talk can motivate you in the face of a challenge and keep you focused. But it's not just about helping you do more, because positive self-talk will also improve your performance.
The key is to use positive self-talk correctly. Because being too positive doesn't work. And saying something over and over again (that you don't really believe in) won't magically change your mind.