Instead of "Just do it", "Merely do it."
Seth Godin talks about this in his book "The Practice".
When we are working on a creative project, emotions and fear make our journey tedious. It seems like driving a car with the handbrake up. A lot of energy goes into countering the emotions but it doesn't actually make the work better.
Instead, if we focus on merely doing the work, we take the expectations, and therefore, the emotions out of the process.
Whenever you feel overwhelmed while working on a project, try to merely do it, without emotion, without drama.
And when done, merely ship it.