Lots of good advice so far.
I’ll add: Don’t feel annoyed or insulted when a rudder pedal drops out from under your foot because the instructor slammed it to the floor.
He saw the ground loop coming before you did.
Seriously. I was kinda annoyed my first few landings in a taildragger that the instructor kept messing with the pedals. Once he got me partially in the groove of it, he let one of the directional excursions that looks absolutely tiny at first, continue a bit longer...
... and we were headed for the side of the runway.
Oh! You mean it’ll go astray that easily?! Okay I get it now. Move feet. Fast. Even if you have to wiggle the ass end of the airplane back and forth until you figure out how MUCH to push, STOP all directional changes IMMEDIATELY
It ended with him slapping that pedal to the floor again and even using a very tiny but perfect amount of brake to not slide the tire on that side to help out, and a tiny blast of engine power to give the rudder a hand.
That was in the Husky years and years ago. I never forgot him purposefully letting us head for the ditch for what felt like only a split second at the time.
When I flew the Citabria for the perfunctory (because I already had plenty of spins under my belt) spin endorsement for the CFI, I enjoyed both remembering to move my feet QUICKLY to stop any directional changes rolling out, and also a “Hey, not bad!” from the back seat.
I should go finish a tailwheel endorsement. Just no time and nothing I can really do with it (other than have better feet, and that’s not a bad thing) and having to rent the airplane.
They do have a Decathlon Xtreme and it looks like a lot of fun... I’m just worried it will turn into another expensive addiction.