Most people I know worry more than I do. I'm generally not a worrier. In fact, when problems come along, I probably don't worry enough about them. But maybe that's a good thing.
It's not that I don't get stressed out over stuff. The occasion does come along when I do get overwhelmed, but it's a momentary thing. I don't tend to dwell on things, past, present, or future.
The way I see it, what's the point of worrying about something? If you sit there and over think your circumstances, you just end up with a headache or an ulcer. Dwelling on something won't change what's going on. Heck, even doing something may not necessarily diminish your worries. So just sit back and let it go by. Because, eventually, it'll be over and life will go on.
Or, in the words of the great Van Wilder: "Worrying is like a rocking chair. It'll give you something to do but won't get you anywhere."
Look, I'm not naive enough to think that there aren't genuine reasons to be worried. In today's world we're bombarded with worries: terminal illness, unemployment, threat of terrorism, global warming, cannibal clowns... there are so many problems out there with which to deal. I just don't think it does anyone any good to worry about these things.
So try to relax. It's probably not as bad as it seems.