If you lack the financial resources to get the Mystery Method handbook, guide or products, I suggest you start with the free stuff instead like this one:
esp-model-of-escalation-vt97891.html
The Mystery Method is a good PUA book because it enables you to see the structure in a courtship process. This forum also has this section: The Pick Up Artist on VH1 with Mystery. You'll just have to dig deep in the threads to get the information that you need.
It's better to play the piano with 10 fingers than with just one finger. So learn all you can.

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Approach. Open. Escalate. Isolate
Here are my two essential rules on texting that will save you tons of time and money:
general-questions/topic137931.html