In some ways, being a JW accelerated my development and in other ways is stunted it.
I left the JWs in my mid 20s. I had been in leadership roles since I was a 17 year old regular pioneer. My reading, writing and public speaking skills were well above average. I was much better prepared for college and the working world than the average person my age.
However, I was incredibly underdeveloped from the perspective of relationships and dating. We were never allowed to date normally and the principles that formed the foundation of a JW relationship were often completely at odds with those in the real world. Whereas being a rule-following JW was often enough to attract a female JW, in the real world you had to develop yourself more fully as a human being.
Women expected an interesting personality, romance, and excitement. Normal people spent their teenage years fumbling through romantic relationships honing their dating skills, and I was expected to learn this as a grown man when the stakes were higher and the tolerance for mistakes much lower. It was bad, but I worked through it.