The track I race at is about a 45 minute drive, not too far. They have a decent indoor facility that they open during the winter months, and they run a 1/12 carpet and 1/16 and 1/10 dirt track. I run a 1/16 Kyosho Mini Inferno on the dirt track. Fun stuff.
I know what you mean about losing energy and focus. It happens to me too. Brainfog often makes me have to step away from building, flying, and driving. It's so strange. One day, I"ll spool up the Raptor and it's like riding a bike-very comfortable and familiar. Then other days I spool up to takeoff/hover RPM, slowly moving the collective forward, and it's like the sticks have swapped sides and are reversed. It's totally alien, like I've never flown at all.
On the bad days there's a disconnect between my brain and my fingers, and on the really bad days, memory and coordination simply go AWOL. Frustrating as hell.