It's very, very unlikely a war would erupt, and there will be no secession, and the sky will not come close to falling. It's merely a reshuffling of the economy and politics that has happened before in US history several times. The big things that we're going to see different are a lot of mexicans flooding into low skilled labor while being granted amnesty, a continued fast lane for citizenship for foreigners to undermine labor costs for the non-trump related manufacturing that is coming back to usa due to technological advancements because it can't all fit inside mexico (which is the preferred location that US companies wish to have things manufactured). Chinese and indians are part of the flood of immigrants that will be coming in. There is no need to pay attention to the news, there will be nothing for you to do, participate in, nothing. Just focus on your life and projecting strength that way - no need to be "up to date" checking the global "news" anymore.