You guys probably already doing it, but what keeps me motivated, is reading dream journals of others or of my LDs, books about LDing, posts on DV, other websites. There is always something new I find and that gets me excited. It was suggested by someone, that you find a hobby, and that excitement will transfer to excitement about LDing. I believe that being excited and happy is crucial to having LDs. Sometimes I try to recall a happy moment from past and then recreate that feeling when thinking about LDing.

Hope this helps.