Don't worry about doing it just right, just get started — and don't let great be the enemy of good.
Inspiration comes from action.
The same ritual associated to a desired mental state (focus, or creativity, or presence, etc) is like a "power-on" button.
Repetition is key. Do not work on multiple anchors at the same time.
The brain never stop thinking about incomplete tasks.
Hemingway used to strop writting in the middle of a sentence of which he knows the end. His brain continued to work overnight, so that the next day he could easily finish the sentence and smoothly complete the rest of the story.
Possible approach: 120 seconds bootstrapping
Brain-task switching is exhausting!
One trick is to do family batching, it is ok to switch tasks of the same family to keep a good level of efficiency.
This needs a bit of preparation:
The brain has a limited willpower/determination reserve and every micro-decision leads you to the decision-making fatigue.
The trick is among all of your tasks, you should focus on 3 tasks at most and leave/ignore everything else.
The brain has two mode of working: 1- slow/analytic, 2- fast/intuitive. If there are too many tasks in your backlog, the mode 1 get exhausted quickly.
If more than 3 tasks are urgent and important, choose 3 tasks among them.
A general strategy is:
People that practice auto-compassion are mort successful than people practicing auto-criticism.