The 4 boxes

Fill them before you build.

Customer
One person you can name. Someone you could message today.
Problem
Their problem, in their words. Find where they complain. Copy their exact words.
What they use today
Ask them. “Nothing” is an answer, and a warning.
Value proposition
Who it is for, and what changes for them. Example: “For new runners, so they finish their first 5 km.”

Then message 3 to 5 people. Ask about the last time it happened, not if they like your idea.

Then write your weekend goal: one number for the whole weekend. Post it in Discord. Example: “My goal: 20 sign-ups by Monday.”