Find the key parts of your project to make it functional
What do you want to explain? Which is your incredible idea? What is it solving? It is really need it?
Write the principal concepts that define the idea. Connect them in groups. Realize that this is how your idea looks like in your brain.
Rewrite the mind map until it looks as a simple algorythm. Work hard on this part. It will light up your ideas and help you to define the needs of the project.
If you still think is a good idea here will begin a hard work with many questions that you will need to answer with time.