Welcome Gordon,
So coming back after so many years away from the hobby, you are not alone a lot of us on here are returned retirees. We do not have stupid questions on this forum, we have people that wish to learn, and if you do not ask, you do not learn... You will soon pick up on subjects like airbrushing, weathering, washes etc etc so do not be put off. Yes I have a SWMBO who is a dust fanatic, every time she passes my room she turns pale and rushes for the garlic and wooden steak and swears the dust from my room polutes the house - I call it insulation....
Again welcome to the forum.
Mike.