You need something that can open json files, your notepad would work, but you can also use Notepad++.

The save is located at C:\Users\<your username>\AppData\LocalLow\MyMottoMe\This Is the President\Saves\Profiles\0

Pick which ever save file you want and open it with the software you chose.

Ctrl+F the number of money you have, there should be about 3 numbers. Just to be on the safe side, change them all.

Search for this string piece:
"Stress":
Go through all of them and change the number after it to 0 if you want everyone to work.

Search for the following thread
"RATING":
Change the number afterwards to 100.0 to achieve full approval, or to whatever you want.