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'Alternative facts' and dishonesty are something to be resisted coming from the left, right or centre.
Re-adjusting takes time and generally only those who have also spent considerable periods away from home will understand how you feel. Speak to these people. Laugh about your adventures over a cocktail and keep up your new habits. If you learned a new language don't let it go. If you learnt how to cook a special dish, keep cooking it. If you learned to love a new sports team, wake up at 3 am to watch those playoffs.