Hi, I'm sorry you're feeling so anxious. I don't need to tell you that it's silly, because you know that, but the underlying feeling of dread is clouding your thoughts and the logic just cannot get through. But if you feel there might be truth what your scary 'friend' told you (and remember that's just their opinion, no more) then there's no reason why you can't believe what I'm about to say.
I am 100% sure that it's simply an extremist opinion, with no basis in fact, and it is inconceivable to me (and I'm confident, the vast majority of people) that it could be true. Some reasoning: if Obama wanted to wreak such destruction, he would have done it in his first term, not waited until the second, hoping all the while he would get re-elected! And if he did plan it that way, he's rather inept at being evil, in which case there's no way he would manage to do anything bad without the rest of the world noticing and putting a stop to it. Without getting into the religious aspect too much, if being the 'anti-christ' gives him powers so that none of this matters, then Christ has the power to stop him. And someone, somewhere, has almost certainly said the same things about Romney in the past week.
I hope it helps to have someone else say that, sometimes reassurance from outside helps the message get through the clouds of anxiety.
Now, thinking about the aromatherapy - when I was feeling really down a few years ago, I sat and made a list of smells that would remind me of good times, then tried to track them down or recreate them. Examples being the incense they used to burn in my favourite shop, which had since closed down, or the smell of a juice that my grandparents used to give me when I was really little. Then I tracked down the incense, made a lot of juice until I got it right, and found other perfumes and smells that I'd come up with.
I recommend it - making the list in itself is a cheery thing to do (just concentrate on happy memories!) and it's good to know you can recreate a scent that you know will lift your mood and make you feel safe.
I know it doesn't matter who's president and that my day to day life won't change, but these people have really scared me. I got away from them(I am at a more moderate church now). But they still scare me. I worry too much basically. Any suggestions on how I can calm down? Not to make this an argument, just that I could use suggestions on how to make myself feel better. I know writing stories that I write just for fun and don't intend to publish helps (craaaaazy sci fi! 
). And I know aromatherapy helps me(I make my own potions and could probably start my own business.) Any other suggesitions?
That's acting like a child with his hand caught in the cookie jar. I am thinking of visiting Israel and actually teaching English there for awhile-- my goal is by 2014 and I am learning Hebrew now. Most of my friends are much saner than this guy-- and I never considered him a friend anyway-- I was just seduced by his good looks and supposed spirituality. (We dated for awhile-- i got tired of his lies.)