Hahaha! Oh honey, if you think you're at the bottom now, you have NO idea... lol.
Anyway.
*puts sugar hat back on*
Don't feel too stressed about "doing nothing" at this stage of the game. Most people I know only really "got" their concepts around now or a month or too later, and from past experience I know how frustrating it is to work when you don't even know what you're working ON. Know that many other people are going through the same thing right now, and don't beat yourself too much about it
Save the energy for the creative process.
Being demotivated happens to all of us at least a few times during the EE2 writing process. When you push through it (and some of you may have) you hit burnout, which is even funner (not). There are a few options you can take - what I did personally was to keep an open mind and find something else to do. I hate the head-bashing-against-brick-wall thing. It just gives you a headache... and why give yourself a headache when you can do something else? Come back to it later when you have a fresh mind that's been exposed to new things (read: Potential inspiration/motivation!).
The other alternative is to push through it and write 200 words or so EACH NIGHT. Even if it's pathetic chances are you'll get at least something good out of it eventually, and survey says that it's so much easier to work with something tangible rather than with the imaginary - starting is the hardest part, after all.
*is taking this point by point* Don't worry too much about research. The point is that you're doing some at all!
If you're stuck, look outside the square. You can ALWAYS research on the writing medium (I highly recommend watching "Finding Forrester"), or on themes related to your concept. You should get lots out of here - and don't worry if things are unrelated. My research ranged from Finding Forrester to Michael Ondaatje to Madeline - they may not have related to each other, but they DID relate to my story. And that was the whole point of the exercise
In regards to reflection I don't think it's a bad idea to write about what you think your story will be like - however I DO think it's a bad idea to put more effort into this reflection than into the MW itself (who am I to speak... I did this as well! haha). The key is to mentally slap yourself on the cheek and get yourself to write something. Anything. Develop characters if you want to, write extensive preliminary notes/studies. But get something done on the MW - you can extend/edit from there