Do not throw your project in there as a whole.

Chunk it into single parts/components/building blocks. Then do each of these a dedicated project/workspace. In each of these workspaces, you put in only the source code relevant for this module. You are working in each project/workspace separately.

Try this

That's what it does. Switch to Codex (not someone else's harness) with 5.2 Codex XHigh