How was it possible for you to attend school, not salute the flag, not participate in holiday activities, be told that your classmates were all going to die, be taught that education is not important, and have your "worldly" friendships discouraged or outright banned - and not feel socially awkward and apart at the very least? Given those circumstances, even if one's nature is to be outgoing, how could that natural inclination not become stunted? I am curious.
Remember I grew up in the 50's and was in high school in the 60's. It was no big deal to not do holidays. I didn't do it, and no one cared. Sometimes someone asked why and I said "it's my religion". Best answer for a child, I think. I couldn't have explained it further.
Flag salute was more difficult, but I never felt weird about it, I just didn't do it.
Worldy friends weren't forbidden, and I dated lots of worldly guys, and my school friends were at our house all the time. They all knew I was a JW, but they liked me and the family and it was okay. Friends from the congregation were school officers, cheer leaders, and athletes. Most of them are still JW's too, and the guys are elders, and the girls are married to elders, so it didn't "poison" them to participate in school things.
Lots of them went on to college too, and I would have gone if I hadn't married so young. My father desperately wanted me to go to college. My brother did.
My family were always very liberal about the JW's, even though they were very prominent witnesses, and very involved. Times were different, and the organization was totally a different place.