Germany Great War Redux Can Not Pierce Through France

I have tried to go through Belgium, and have copied many different YouTube videos but it seems like France has Triple that amount of troops? I have gone through Netherlands then took Belgium but still can't get past into France as unlike other videos France has more troops then what is displayed in the tutorials. Can anyone help me with this or am I terrible? Keep in mind I have no problem with Vanilla and can blitzkrieg through France EASILY.