SA for your own life sounds intriguing. Do you have a concrete example that elucidates how this could be implemented? The concept still seems a little slippery to me.
Dating: give everything a quick try: Tinder, speeddating, okcupid, socializing (dancing classes). Then see what works best, and put your effort into that one.
Marketing: try everything before you start focussing on the best (I think the book Traction describes it like this).
When I was looking to make my own logo and pinned it down to hiring on fiverr, I let a few different artists do a quick, cheap sketch. Then I hired the best to do the full thing.
I think it comes down to: first, get a quick & cheap taste of everything ("go all over the place"), then slightly start focussing on the things that work for you.
