Approaches to Prior Highs and Lows in Supply/Demand Analysis

Hi everyone, I'm Dave and new to the group. How do you handle prior lows/highs from previous days or weeks? Do you factor them into supply/demand block breaks? In my chart, I marked structures that broke lows and created two supply blocks (see B1 and B2), plus previous daily lows in red. Should these be traced back to point 'A'? I appreciate any perspectives to help my understanding. Thanks!

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