For you and all beginners : use PLAYBOOK and not RULEBOOK first.
Read 30.1.2 Training Scenarios Method in playbook and play scenario (solo) in that order : Poland 1939, Scandinavia 1940, France 1940 and finally Main Event 1939-1940 (not Main Event 1939-194?).
During game read RULEBOOK only when you need to understand something.
Don't hesitate to post in dedicated forum.
And STOP to use AUTOMATIC mode for playing, use MANUAL one or play SOLO to learn game.