Until you move to a foreign country and speak with their language so fluently that they can't detect your accent. You need to come back to reality. If it was so easy, everyone would be doing it.
Sure, it's not easy and you'd probably have a recognizable accent unless you worked hard at it. But speaking e.g. French in a thick American accent is a stupid thing to incorporate into your self-identity, just like speaking English in a thick French accent.
