What went against my nature?
Nearly everything about field service, except home Bible studies. Of course, I never started any of my own, and rarely got to sit in on other people's; but I've always been articulate, a natural explainer and popularizer - if I didn't have to impose my beliefs on my audience.
Assuming that all worldlings were bent on my destruction was unnatural.
I knew a few brothers who were proud that they read nothing but the Society's literature, and a few more who aspired to do so. That was entirely unnatural to me. I did censor my reading, but I never quit "secular" books. One of my favorite things to do was read all the books the Society quoted in its literature. Some people didn't understand it, but I (and a couple of other sisters) thought it was fun.
I always felt bewildered when I walked into a home and saw no secular books in the living room. (Actually, walking into a house where there are no books at all in the living room feels strange to me. A properly furnished house has books in every room. ;)
Not being allowed to talk to disfellowshipped people at all, not even to encourage them to come back. When a dear friend of mine was DF'd for The Usual Reason, she began attending meetings at the hall shortly afterwards. I told her "come back soon," - that was literally all - and I was so f*cking obedient I actually SPELLED IT OUT IN ASL rather than saying it!
And the freaking elders pulled me aside and asked for an explanation! These were men I respected, too! This was in 1974 or so, before the big apostasy paranoia.
Not being able to give to charity.
I understood not voting, but I didn't see how you could not have any political opinions at all. Now that one was honored more in the breach than the observance }:)