Am I goofy or regular? (skateboarding)?

Originally i started out snowboarding regular when i was like 6/7. You know they do the test where they push you forward and whatever foot you land on determines your stance. well if you dont the point is I landed on my left foot which meant i was regular but i fought my dad (he tested me) to ride goofy. Anyway now i skate and ive been use to riding goofy so long that i ride goofy skateboarding but ive learned all my tricks regular and cant pop them goofy. I need to find out if i should go reg or goofy