In case you are encountering the term NLP for the first time, it stands for Neuro-Linguistic Programing. The idea behind NLP is that world perception is subjective and it is based on our own capability to perceive the world and our ability to process those inputs. It also shapes how we interact with people as we draw upon that internal map we have constructed.
The concept itself is not new it is very similar to the Umwelt (or inner world) concept that states how each organism perceives the world based on its own natural capabilities and then constructs the image of it inside the brain. So the way your umwelt looks is different from an umwelt of a blind person. Having this in mind helps you with decentralization and communication with other people because it makes it easier to justify other points of view and respect them. But it is also important to know how it can help you with learning and self-improvement, which we are going to discuss here.
Knowing your limits
First of all, you need to know yourself or your dominant intelligence in order to grasp your limitations. This will help you in a way to reduce stress if you encounter difficulties with a particular subject, and it will also help you with identifying the best approach to learning.
Depending on your intelligence you might be better at grasping philosophical or existential concepts. You might be better at communicating with others, or better at visualizing things internally, etc. On the other hand, you might be weak in mathematics, or music, or picking up a new language, or sports. So, the idea is to accept that you might need time in some fields and find alternative approaches rather than beating your head against the wall, wondering why things are going as planned.
A learning method that works for you
The next thing to figure out is what is the best approach to learning. If you have a hard time visualizing things than you will need visual aids, to help you with certain concepts, and will benefit more from illustrated lessons. If you are a social person, you might prefer and thrive in group work and would benefit from finding a study group. Another possibility is that your retention rate is higher if you focus on listening, so you will benefit from audiobooks or recorded lectures. Also, you might find it easier to remember if you write things down, and think about what you are writing that way you can learn and categorize knowledge by creating flashcards.
You might want to combine multiple methods to see what works best. Because there are things that help you understand what you are learning and then there are methods to help you remember those things. This is why combining these methods could be really useful.
How our brain processes the information
The most effective way to learn is for us to not be aware that we are learning, or we learn subconsciously, Of course, this may not be always possible so in order to achieve the results longe learning sessions might be required to fully immerse yourself into a lesson. Moreover, our brains work on problems even when we are not thinking about them and categorize the information we learn. So, you can boost learning capacity by doing something else when you encounter the problem or by sleeping.