I ran my first session today! I have a little game going online with a couple siblings and a friend, and I converted to DW from D&D 5e. We took the first 45 minutes to do up our characters, then we were off. It was so natural and awesome, everything just worked! Pretty sure I did some things wrong, but everyone had fun.
My biggest weakness as a GM has always been my grasp of the rules and making the word seem real. Every time a D&D rule or combat tripped me up, that weakness was revealed. Now, I feel like I can make the game work and build up my skill, rather than being discouraged and burnt out too quickly.