Yes, it is not uncommon for people to feel like they know less or feel "more stupid" as they learn more. This phenomenon is often referred to as the "Dunning-Kruger effect." The Dunning-Kruger effect is a cognitive bias in which individuals with low ability in a particular domain tend to overestimate their competence, while those with higher ability may underestimate their competence.
When you start learning about a new subject or skill, you become aware of the vast amount of knowledge and expertise that exists in that area. This can be overwhelming and make you feel like you know very little in comparison. As you gain more knowledge, you begin to recognize the complexity and nuances of the subject, which can lead to a sense of humility and the realization that there is still much more to learn.
Additionally, the more you learn, the more you become aware of the vastness of human knowledge and the depth of expertise that others possess. This awareness can sometimes make you feel like your own knowledge is relatively limited.
Feeling like you know less as you learn more can be a natural part of the learning process. It's essential to recognize that learning is a journey, and there will always be more to explore and understand. Embracing a growth mindset and being open to continuous learning can help you navigate this feeling and continue to expand your knowledge and skills. Remember that learning is not about proving how much you know but about gaining a deeper understanding and making meaningful connections with the world around you.