Someone wanted to learn this too, so Grasp built them a personal learning path.
You can keep exploring this one or create a path like this one shaped around you.
Recommended resources
Module 3
Patterning the Gown
Module 4
Prototyping for Fit (Muslin I)
Module 8
Final Bodice Construction
Module 9
Final Skirt Construction
Module 10
Assembly & Internal Structure
Module 11
Closures & Finishing
Module 12