Hi, Matt - Welcome to FSM, many areas of interest to modelers of any field. You'll find the airbrush to be a bit tricky to get used to, my first tries were terrible, but as I continued and improved it's now my best and most used tool.
There are many sections for you to explore here, like painting, tools, airbrushing and more, found below the introduction spot you're on. Just scroll down until you find what area interests you.
Wishing you happy modeling.
Patrick