I prefer to think in terms of "How HASN'T the MBTI Assessment positively impacted my life?"
Growing up, I was a nerd. (And I'll admit it. I am STILL a nerd.)
I felt like there was something "wrong" with me because of the interests I had. I have a different perspective now looking at things through the 'lens' of Type.
I was actually quite young when I became interested in Psychological type. (In fact, I went through my certified practitioner training when I was only 22.)
I discovered Psychological Type at the PERFECT time in my life - as a college senior, just as I was moving from student to mature, responsible adult. MBTI provided me with a logical framework that helped put a LOT of things into perspective. (Like, why other people ANNOY me, and what I personally do that annoys them!)
I still do not think that I would have been able to find a job that made me happy had I not been armed with psychological type knowledge.
I developed many professional relationships through the type community. Many of them have lasted for a number of years.
I have sat on the Board of Directors for the Delaware Valley chapter of APTi starting in 2001 (I am currently working with a transition team to revitalize the chapter)
I have also served on the Northeast Regional Chapters board from 2001-2003.
My artwork has appeared on Keirsey.com, and mtri.org.
I have been to APTi conferences and have been published in the APTi bulletin.
And believe it or not, all of these things happened before I hit the age of 25...
I am now 34, and there is no doubt that Type has had an IMMENSE impact on my life. It has been the lens through which I have viewed the world for the past THIRD of my life.
I have always been intellectually curious, and the Type community has provided an outlet for that curiosity.
I am looking forward to further developments in the MBTI that will occur over the next 70 years., and perhaps, I may even play a role in developing some of them...