Lazybones
Adventurer
I put a 6, though I learn new stuff nearly every week. I've run about half a dozen 5e campaigns, some of which have lasted for years, and my players are constantly throwing new situations at me. I have a separate thread dedicated to DM rulings in my Discord and it's got hundreds of posts in it. It amazes me sometimes when I go to Google something and see just how detailed some of the fan discussions get online.