(...) you have to create some space for yourself away from those demands. And that means sealing yourself off.
You must make a quiet space for yourself where you will be undisturbed.
Next: Time. It's not enough to create space, you have to create your space for a specific period of time. You have to know that your space will last until exactly 3:30, and that at that moment your normal life will start again.
— John Cleese - https://jamesclear.com/great-speeches/creativity-in-management-by-john-cleese