I
had to adopt it. Fiance's British, he says 'lift', 'tele', 'queue', 'answer phone'. Living here even the accent rubs off.
I don't think there's anything wrong with changing your vocabulary to what you prefer.
The only word I won't change in my vocabulary is 'cigarettes'.

yes, I smoke but not a lot. 1 pack last me a week, some times 2.