Ok, so cheats can only get you so far correct?
If you want to go one step further , you need to manually mod a saved game (or you can use the hoi2 editor that comes with the game).
All I am going to tell you is that you can find your saved files in
/programfiles/paradoxinteractive/hoi2/scenerio/saved and look above ; clicking "
show compatibility files". If the file is "read only" , unclick it by right clicking the file and unchecking the box under "file details".
You will notice that everything is slightly explained using comments.
To start , use ctrl+f and look up the country you want to mod by using the command
tag="[country id]
So for example my country could be
tag="USA"
For the United States.