So, I reduced the size of my Mac partition in an attempt to increase the Boot Camp partition, but it turned out to be a mistake. So now I want to restore the Mac partition to its original size, but every time I attempt to do so, nothing happens. No errors or anything, it just goes through the process normally without actually changing the size.
Basically I just want the Macintosh HD partition to fill the empty space below it, without deleting/reformatting either.

Basically I just want the Macintosh HD partition to fill the empty space below it, without deleting/reformatting either.