I do believe that eating raw whole foods helps. The evidence is backing this up more and more. Exercise is good also. Of course there are factors we can't control, but I defy anyone who says that a good diet won't make you feel better.I very much doubt that food in any way impacts your mood unless you eat at burger king every day. There are too many things in life that make us happy. Just remember when you were able to buy something that you always dreamed about and the happiness that followed. Not to mention how love changed your life overnight and turned you into a better and happier person. Working out and preferably running will make your endorphines give you a constant rush of well being. No one can find a diet that makes them happy cause I doubt a diet would help someone in a abusive relationship or someone out of work or being homeless.
Just stop being such bloody fools.