I just attempted this morning. My problem was I was not awake enough and fell into a non-lucid dream while counting. In my dream, I wondered why I was doing this and went about regular dream activity in the environment I fell into.

When I first began trying to lucid dream, I had those similar distractions. Mine would always seem to be that my eye would begin itching.

Also, I just read on one of the tutorials on this site that you can try WILD from whatever position you are most comfortable.