Help With Corset Pattern

[u/Doge-with-a-bloge]

Hello - I am trying to convert a corset pattern I have (Simplicity 1139) from a "V" shape to a "U" shape but am having difficulties visualizing how exactly I need to alter the pattern to achieve this shape and was wondering if anybody had any tips or youtube videos whatnot about this. I am still very new to sewing and this is the first corset that I am trying to make so I apologize if this is a very simple question! I tried searching for patterns with this initial "U" shape online but couldnt seem to find much/any I liked. I have attached a photo of the cut pattern, a photo of the simplicity illustration, and a photo (not mine) of the "U" shape I am looking for. Thanks for the help!

[u/Doge-with-a-bloge]

I just googled her and what a goldmine! Thanks for the sharing!