Step 1: Build a useful project, even if it is inefficient at first.

Step 2: Use Pareto Analysis, Actionable/Measurable Short Term Goals, Rapid OODA/Iteration Loop to delegate and automate project from Step 1.

Step 3: Keep trying to reduce system from step 1 to require minimal input from yourself - ideally, 1 hour or less per week.

Step 4: Maintain previous system(s) while looping Steps 1-3 (probably 1-2 successful iterations per year) until you have a bunch of ultra-effective projects, designed to pursue your aims, delegated and organized into less than 20 hours per week of total work time for you.

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That's what I'm trying to do anyway... Like building many dedicated processors in parallel. Hopefully by age 40 I've got my selfish earnings, my philanthropy, and my "chaotic neutral" type projects all up and running :-)