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A difficult problem does not mean that you know nothing. Keep the structure you already have, break the problem into smaller named jobs, and work on one missing piece at a time.

Before coding each problem:

Identify the input and output.

Name the small job.

Decide what information it receives and what result it should produce.

Diagnose your current position:

Ready — I know the steps and the Python.

Algorithm gap — I need to work out reliable steps.

Instruction gap — I know the steps, but I need one Python tool.

Test the small job, then connect it back to the larger problem.

Recommended route:

Core path: 1043–1046

Extension challenges: 1047–1048

You do not need to solve everything at once. Knowing exactly what you need to learn next is progress.