Questions about the relaxation protocol – resetting after each task and falling into a down?

I’ve been working on the relaxation protocol with my 8 month old rescue, and I just have a couple questions for those who have done it before.

She’s very smart and obedient during training sessions (when distractions are present that’s a different story, lol). She blew through task set 1.

If the tasks are like “Sit while you count to 5 seconds. Sit while you count to 10 seconds.” Do you break and reset the sit between these tasks? Or do you reward in between and restart the count?

If I ask her to sit, sometimes she’ll fall into a down especially if there are a few tasks in a row. Is it okay to leave her here or should she be sitting since that’s what I asked? The introduction to the relaxation protocol says that if a down is more comfortable for the dog, then it’s okay. I just want to make sure I’m not rewarding her for the wrong things.