Its 3 or four years since I last loaded a MS flight simulator game (WW2 Combat simulator), but I can understand how you are feeling
Perhaps your best route is to acquire an older version. I have the 98 version and even that offers immensely complex things to do.
Shun (at this stage) a wealth of complicated and expensive addons, and just get used to circuits and bumps in the variety of nmachines in the programme
I prefer the instant action of Combat F/S though the second CD in that series, war in the pacific, I never grew to love - The Japs got me much too often/soon.
The basic flight simulator has no combats and I suppose rewards those who take it very seriously, fly very accurately, sticking to the rules and if not bored to tears feel satisfaction doing what others have told you to do.