How do I start over with no savings?

Runway lets you build in private until you are ready. It is comfortable and it is also how people spend two years and arrive nowhere.

Without it, you are forced into the only thing that reliably works: find someone who will pay you a small amount for something adjacent to what you can already do, now. It will not be the thing you eventually want to do. It is the bridge.

Every person I know who rebuilt from nothing did it this way, and every person I know who waited for savings is still waiting.