Think back to the days of classroom study with the occasional quizes and tests.
Step 1: Master a fire management technique with your smoker and fuel.
Step 2: Choose quality (non-enhanced) meats.
Step 3: Start with a simple homemade rub or a quality commercial rub.
Step 4: The textbook - The BBQ Brethren.
Step 5: Start with shorter length cooks (chicken, fatties, ABT's, Moinks, Porkloin, etc.)
Consider them your quizes. As you get comfy with these cooks... prepare and study some more for the longer cooks.
Cooking at Mason-Dixon BBQ Services
Lang 84 Deluxe Kitchen known as "The Glamazon" , Custom Klose Backyard Chef... of Snot, and a 22.5 WSM
Lang 60 Mobile - The Damsel II, Lang 48 Patio - The Damsel, Bubba Keg Grill - RIP, Double Barrel Smoker and a BSKD