I did a search forums for you and there are lots of previous threads asking for, and receiving, advice on how to get out of a slump. Maybe some of the advice will help; at least you know you're not alone. Good luck!
http://www.chess.com/forum/search?keyword=slump
Unfortunately, I have to say that lately my progress in chess weakened so smuch. I try to do some tactics exercises with chess trainer everyday but my actual games are apparently much worse than before. It is disturbing for me. As can be seen, bad days finally came for my chess development. I am not as focused as always and even make foolish blunders. Maybe I am a little bit tired of chess..Maybe I need a short break .. Who knows. Have You guys experienced something like that in your chess life ? Can You Help me somehow? I will be grateful for Your good advice. Take care and much love.