No, it doesn’t really matter what brand of computer you choose to work with. The same is true of the software you use. Leonardo da Vinci changed the world, writing with a quill.
No, it doesn’t really matter how you plan what you write. Best-selling author John Boyne, like many, doesn’t plan at all. He doesn’t even know where the story is going, until after he starts writing it.
No, it doesn’t really matter how inspired you feel. You don’t wait for inspiration to appear… you command it to appear.
What matters is that you get started. So learn to identify your stalling tactics. Then, call them out for what they are.
Now you’re free to focus on doing your best work.