Set Manageable Goals
Having an overarching goal for what you want to create can be a solid place to start but it can also be a very daunting prospect. Therefore it can be beneficial to break down the process into more manageable chunks. Instead set yourself manageable daily goals. By breaking your project down from the earliest creative steps through to the final product you will find each step more manageable. The important thing to remember is to make sure your goals are achievable, as it can be soul destroying to set yourself a grand ambition, only to feel knocked back when you don’t achieve it. Don’t forget to take breaks too, even the most productive of us need our days off. These small achievements can help you break the cycle of feeling like you are getting nowhere and replace it with the regular feeling of achievement.
For example, if you were choreographing a dance.
Don't set yourself the challenge of writing the whole thing all at once. I find my best dance choreographies evolve over several weeks of writing and developing the idea.
Start looking for inspiration, watch as much as you can in the style you want to work in. Make notes of what you like. - This can take as long or as short a time as you want.
Use the moves you liked to create a section - it might be the chorus / verse or introduction (etc.) that suggests it's self to these moves.
If you are not happy with what you get, think how you can change a move or combo to present it in a different way. Change the arms, turn sideways etc.
When you are happy with a section video it. (It is so easy to forget what you did.)
When looking at your dance as a whole, ask yourself if there is anything you could or want to repeat. The chorus or subsequent verses often contain the same musical structure so you could repeat sections. But you don't have to! A useful device for such repeats is to use the same combo but face a different direction, it looks completely different to the audience.
Keep repeating the above process until you have your dance.