INTP personality

I took a personality test and the result was I have INTP personality.
I've blogged and said that I am an introvert person. So, here's a little bit deeper about introvert. I like to read about this kind of thing/psychology things.
Here's a link that explain INTP personality:
http://www.16personalities.com/intp-personality

Have you ever wondered why…

• …you feel energetic in some situations and exhausted in others?
• …you are not quite sure how to reach your full potential in the world that sometimes seems so foreign to you?
• …you find it easier to talk to some people, but not others?
• …your friends sometimes say that you are special and mysterious?
• …you have difficulties studying certain subjects? 

All of them is YES!

I will highlight some parts that best describe me:
INTP personalities are usually very shy and reluctant when it comes to meeting other people. However, INTPs can also be very friendly and confident when they interact with people they know well or talk about things that interest them. INTPs are flexible and relaxed in nearly all situations, except when their beliefs or logical conclusions are being criticized. In those cases, the INTP is likely to become very defensive and argue tirelessly.

People with this personality type may also find it quite difficult to explain their thoughts to others, even when it becomes obvious that their theories are not easily graspable.

INTP personalities tend to be very loyal and faithful partners. INTPs are also unusually direct and honest, even if they have just started dating someone. People with this personality type always stick to their commitments and are actually quite easy to date and live with – they have simple daily needs and do not demand much from their partners. However, despite seeking simplicity in dating and romantic relationships, INTPs do not lack passion or romantic feelings. On the contrary, people with the INTP personality type tend to be extremely creative individuals whose vivid imagination allows them to always remain very enthusiastic and passionate in romantic relationships. Anyone dating an INTP may be quite surprised by this sometimes. (yeay!)

It is not surprising that INTPs are likely to have a very small circle of good friends. That being said, INTPs will value and respect their friends greatly, and work hard to keep these relationships strong.

(-) Very private and withdrawn. INTPs are often reluctant to let anyone inside their minds, let alone their hearts. They may often come across as shy in social settings and even the INTP’s friends are likely to have a difficult time getting to know them well.