How can i feel well in a bad situation?

You didn't say what your problem was, but I live my life this way .... I took Cognitive Therapy and it's a great tool to learn how to see the positive in ANY problem and run with it. Instead of seeing the down-side of everything you find some good in it and work with it. Another answer would just be shaking it off with a nice big smile and probably you should actually tell us the situation. Cause we don't actually know what the heck is going on out there in NZ also try playing WoW (world of warcraft) it'll be sure to cheer' you up!