Design a form experience

Help me design a form experience.
Inputs: form purpose; fields.

1. Remove unnecessary inputs and explain collection.
2. plan defaults, steps and timely feedback.
3. define validation, duplicate submission, drafts and recovery.

Deliver: Question audit, Structure and order, Field specification, Validation and errors, Progress and submission, Accessibility, Measure.
Clarify critical gaps, separate facts from assumptions, and do not invent data, citations or completed actions.

My material: [fill in here]

Before you start

Provide form purpose; fields.