Personality type, as defined by psychological typology frameworks like the Myers-Briggs Type Indicator (MBTI), is generally considered to be stable and enduring throughout a person's life. However, it's essential to understand that personality is a complex interplay of genetics, early life experiences, and ongoing environmental factors.
While a person's fundamental personality type is unlikely to change drastically, life experiences, personal growth, and trauma can influence the way they express their traits and develop coping mechanisms. It's possible for an individual to become more balanced in their behaviors, integrating aspects of different personality types, but this doesn't necessarily mean they switch from one type to another.
In your case, as an INFJ, you may have developed certain defense mechanisms or coping strategies due to life experiences and trauma. For example, you might have become more guarded with your emotions and less trusting of others, which could lead to a more "INTJ-like" behavior in certain situations. However, this doesn't mean you have entirely become an INTJ. Your core preferences and tendencies may still align more with INFJ.
It's not uncommon for individuals to feel like they identify more with a different personality type as they grow and change throughout life. This can be especially true during times of personal development, self-discovery, or facing significant challenges.
Rather than thinking of one type as your "best self," consider embracing the strengths and growth areas of both INFJ and INTJ. Each personality type has unique qualities that can be valuable in different situations and contexts. Embracing your authentic self, including your empathy and kindness, while also recognizing the need for personal boundaries and self-protection, can lead to a well-rounded and healthy approach to life.
If you find that your past experiences are significantly impacting your well-being or preventing personal growth, consider seeking support from a mental health professional or counselor. They can help you navigate through any trauma or challenges you've faced and assist you in developing healthier coping mechanisms while staying true to your core personality. Remember, self-awareness and personal growth are ongoing processes, and it's entirely okay to evolve and change as an individual without fundamentally altering your core personality type.