Understand your two main systems of thinking.
Once you understand yourself, you can begin to improve yourself.
Recognize that there are two main systems you use to process the world around you.
These are known as System 1 and System 2. The main difference between the two is that System 1 requires little to no effort to operate, whereas a conscious effort is necessary for System 2 to work. You would use your System 1 to understand simple sentences, and your System 2 to fill out a tax form.