Stay in the room and keep practicing

No.

As much as she wanted to brush that majestic creature's mane, Adora knew that she had to get this right. If she couldn't manifest She-ra on command, what good was she to the Rebellion? Besides, at least she was practicing somewhere private where no one could see her privates. After she brushed herself off, Adora raised the sword and repeated the words. "FOR THE HONOR OF GRAYSKULL!"

Nothing happened. So she did it again.

And again.

And again.

And again and again and again and again and again. Each time, making slight alterations to her pitch, pace, and tone in hopes that it would trigger something magical. Instead, she just grew more and more infuriated with the sword and herself. If Catra were here, she'd be telling Adora to give it a rest but rather than give in to her imaginery voices, Adora continued for several more minutes. She didn't stop until her biceps were sore from thrusting the sword into the air. Adora contemplated taking a break but then she heard something.

Footsteps. Three sets, if she wasn't mistaken. Adora wasn't sure how much time had passed but apparently she was running out of it. Desperately, she raised the sword once more and recited the phrase one last time.

"For the Honor of Grayskull!"

At long last, the sword reacted and lit up. Adora's hopes were rising steadily but not for long. Beams of light rapidly shot forth from the hilt and Adora wasn't sure what was happening. It wasn't turning her into She-ra something was amiss. She tried to stop in time but it was too late. The door opened and Glimmer and Bow brought in Queen Angella. A regal lavender-skinned woman flowing with a slender build, pink locks, and grand angelic wings. She wore a pink unitard, violet leggings, and a cape much like her daughter.

She was also just as surprised as her daughter when they walked in on Adora wielding a sword that was firing blasts of light all over the room. Adora managed to regain control but not before one wayward blast went straight for the door and zapped one of the three individuals standing there.