Human mind is a powerful thing. If you belive you are the unluckiest human in the world, everything will seem that you have the worst luck. Future can't be decided by karma. Actions decide, what path you walk. Some of them are like climbing a mountain, some like highways. Anyway, look here:
In every bad thing, there is something good. And in every good thing, there is something bad.
I always try to look for the good parts in bad things. Besides, im always prepared for the worst, so i can look something positive in it.