Really like the summary. I would like to add that in order to be 100% focused, one should practice fully immersing themselves in the present moment. Not about what needs to get done later today, or what you should have done yesterday. 100% in the present moment. Think of it like tunnel-vision for what's right in front of you.

"Do stuff. Be clenched, curious. Not waiting for inspiration’s shove or society’s kiss on your forehead. Pay attention. It’s all about paying attention. Attention is vitality. It connects you with others. It makes you eager. Stay eager."
– Susan Sontag

Cheers