Consider saving time and frustration by using Inkscape to do all the pcb work, then load it into Fritzing. Many tutorials posted here and youtube on how.
It took less time to make the attached than to type this text… about 30 seconds in Inkscape…
Attached does not have the dim’s you want or hole placements as you want.
You can simply drag the holes to desired location (bottom edge of Window shows location position of mouse or, if object selected, it shows location of upper top corner.
You can resize the Board in the panel…
forYou.fzz (1.7 KB)