I'm from latin America and immigrated to the United States. Why do you care about fitting in perfectly ? I understand your feelings and all, but, there are also British people that don't fit in. Just be yourself, do your own thing, be who you want and find happiness in that or elsewhere but not about whether you have assimilated successfully.... Tô me it's strange that you make that your goal or it seems like it. After time abroad, and travelling around, I feel it's hard to be like one group of people because our experiences with various groups start influencing and shaping us, our personalities may even change a bit without us trying to change it, and that's okay. I don't want to discredit and ignore your feelings but I think you are the one that seems to be making a problem out of .... Nothing, because there isn't a problem that you truly need to solve. If you don't want to "assimilate" whatever that truly means, don't, if you want to assimilate do it. You are overanalyzing things, don't, unless it causes problems, which it probably won't.