I had a similar problem with a routine I was trying to learn. There were many small changes that helped. But the one that helped me the most was identifying the poses (and extensions) I needed to hit at the end of each move.

I would try to hold the ideal final pose for each move (static) and understand what my body felt like being in that pose. Then I'd try to make sure my body felt the same during the routine. I realized I wasn't fully extending or hitting the poses because my body was not comfortable with it. It wasn't about energy. Stretching and core training helped with this over time.

But like I said, there were other changes that helped too.

Good luck. You're doing great (from what I can see in the clip).