I read the news at times just to stay up to date on whats going on in the world, but too much of it can certainly be a bad thing and get your head filled with all the bad stuff so it can be harder to see any good things.

But given your location some of the 'news' is happening right there, so whether you read it or not what's going on there is likely to effect you, but its normal for people to be over-stressed and exhausted and feel a bit down in situations like that....If you have the option to get a delay on your exam and feel like that would be beneficial I'd say go for it. Also maybe going back into therapy would be a good idea, if that has helped you cope in the past.