I can tell you that many individuals don't fit neatly into the strict definitions of introversion and extroversion. Human personalities are complex and multifaceted, and it's common for people to exhibit traits from both ends of the spectrum.
The Myers-Briggs Type Indicator (MBTI), which includes the INFP personality type you mentioned, is a popular personality assessment that categorizes people into different types based on their preferences. However, it's essential to recognize that these types are merely generalizations and not strict boxes that completely define an individual's personality.
People often fall on a spectrum of introversion and extroversion, and there's a term for those who feel they lie somewhere in the middle: ambiverts. Ambiverts are individuals who possess qualities of both introversion and extroversion. They may enjoy socializing but also require solitude at times. This middle-ground feeling is entirely normal and does not mean there's something wrong.
Personality is dynamic and can vary in different situations or stages of life. Someone might feel more extroverted in certain situations and introverted in others. The way you experience introversion and extroversion is unique to you, and it's perfectly okay to identify as an ambivert if that best describes your personality.
Remember, labels like INFP, introvert, extrovert, and ambivert are only tools to help us understand certain aspects of ourselves, but they don't define the totality of who we are as individuals. Embrace your unique personality and preferences, and focus on understanding yourself rather than fitting into specific categories.