Hey Chuck and welcome

great advice by all so far.It's a great forum with a huge base of knowledge on this particular area.I reckon some of these guys have been simming since before Galland met Bader
All i would add is this. I would start somewhere middle level in learning curve like EAW. It is an immersive game although graphically older than many other titles.Extremely easy to fly straight out of the box starting on easy settings ( i used to get narky if i did not get 8 or more kills a mission) and ramping it up as you get the feel for it.Keeping the game 'clean' (although do install the first basic patch) and not worrying about addons until you can get the hang of how to fly and fight,adjust stick settings,get used to the view system etc.Once you are comfy you can look at the basic file structure of the game and see how basic addons work for it.Download far better flight models , skins , terrain,sound packs (a must) campaigns and heaps of other goodies that will just 'dump' into the main game directory.
Another way of doing that is to use a Game addon manager like OAW where you can change all of the above within a fairly neat gui.EAW is also still active online and there is a great bunch at the EAW forum here that will help you through from the basic install to understanding where it is now with all of the addons , there a huge amount that's been made for it over the years and it can look daunting at first.That's where programs like OAW come into there own for organizing your skins,terrains,campaigns etc downloads and letting you select what you want to fly,who with,where,in what season,what year and much much more with a few simple clicks.
To ramp it up a bit there is the IL2 series.A sim that has a larger learning curve with more options out of the box such planes with prop pitch control,several stage blowers,water methanol injection,gyro gun sights on certain models and even Norden type bombsights that once mastered are a great feeling of accomplishment .Skip bombing and torpedoing is also brilliantly done and great fun.Taking off from carriers in heaving seas and rainswept decks and then breaking out into sunlight above the storm clouds knowing that you have to find that carrier again in the murk is a killer.Like EAW there is a million skins,single missions,campaigns and other mods to incorporate into the game but with the 1946 version you would not really need to delve into that stuff too early as it is fairly complete sim.That said there are some simply stunning skins that can simply be dropped into the correct folder that will immediately enhance it, and like EAW it has simple settings right up to 'full real' as we call it.Locked in pit with no outside views and all noobie options off

Thats where a device like TrackIr becomes indespensible, once you have flown with it you cannot go back.Truly.Its a beautiful thing.
IL2 is also still very active online and there are plenty of squads you could join that would take you under their wing and definitely improve your skill level.
Il2 will need some research on your card settings and also looking at and changing a certain conf.ini file (located in the game folder) to get the most out of it and as with EAW there is an excellent forum here that will cater to all of your questions regarding any help.
Hope that is all pretty clear and of some help.
cheers