Following what zobey said, I know what that kind of frustration you're going through. I've had the issue of just simply being too excited to lucid dream, so patience is paramount to actually get into it.

Focus on first getting to sleep - what kinds of things can you do to get into sleep efficiently and painlessly? Warm milk? Relaxing music? Whatever can get past that first step without much difficulty is very important right now, that way it won't be so difficult to move on to the subsequent steps.