Gradually Americanised (but not yet Americanized)
I've realised that I no longer bother to convert temperatures from the weather forecasts into Centigrade/Celsius (not being sure which of those is the weather temperature has nothing to do with coming to America, though; I never knew which "C" stood for there). More troubling to me is no longer being able to remember which spelling is English and which American in some instances. The worst case, and most persistent, is "practice"/"practise", as I'm not sure which is the noun, which is the verb, in either language now. Some other "c" words have come up recently, but I forget. Some English website I was looking at this weekend, I think, where the correct spelling for 23 years of my life suddenly looked very wrong...
Curses!
Curses!