Welcome back. It is a common theme for many of us.

I too recently picked up again after 35 years.

Mainly getting set up for retirement but have started an AMT Millennium Falcon build that I'm documenting here AMT ERTL Millennium Falcon Build

Long slow process because that other thing called 'Work' gets in the way far too much

Slowly but surely I'm getting there.

I too got an airbrush [no booth yet] and am learning lots from tutorials on YouTube [I watch them while I'm in boring work meetings]