4 times personality test, 2 opposite results. Can someone explain this?

The tests aren't all that accurate in determining one's mbti type. Also, nobody will posses 100% of any type's traits. A more efficient way of identifying your main type is to thoroughly study the eight cognitive functions. All types use sensing, intuition, thinking, and feeling. The question is, what type of each do you use, introverted or extraverted? And in what order do you use them?

Se = extraverted (objective) sensing
Si = introverted (subjective) sensing
Ne = extraverted (objective) intuition
Ni =introverted (subjective) intuition
Te = extraverted (objective) thinking
Ti= introverted (subjective) thinking
Fe = extraverted (objective) feeling
Fi =introverted (subjective) feeling

If you look at the functions of both personality types, they are actually the same functions, just opposite of each other. Many times, when people are under stress, they take on their "polar opposite" personality type. If you would like to talk about issues that you are going through, please know that there are people who can and will help you with what you are going through. You may want to consider talking with a counselor at a hotline. There are many hotlines that are 24/7 and will work with you and situations like yours. Some even have email and/or chat if you would prefer. Hopefully, you will continue to reach out!

Sincerely,

HW, Counselor

No. Personality test in the internet are usually (most of the time) inaccurate.

The vast majority of personality and IQ tests that are found online, aren't really testing anything, just gaining info for advertising.