Britney Spears opened up about her struggles with self-esteem in a revealing Instagram video. The 37-year-old also shared what she does to combat those negative insecurities.

In a recent Instagram post, the "Toxic" singer shared video clips of her talking to the camera and doing acro-yoga with her coach.

"Body language is everything!" she captioned the clip. "The way you speak to yourself and carry yourself can [affect] your mood ... I have self-esteem problems so I slouch ... These poses help me every day become stronger and it’s quite fun doing them."

"I feel so different every time I do it," she added, "'cause I’m not used to the feeling of my back being out."

In the first video, she describes how working out has helped her feel physically better. "Basically what I'm going to do today with my gym coach is basically arch my back," she told the camera.

"By hanging upside down it opens my back and it enables me to breathe better and to open up and to feel better," she said, before demonstrating the moves.

In the clip, soundtracked by Sting's "Field of Gold," Spears climbs atop of her coach's legs and begins to do acro-yoga poses and stretches while balanced on top of his feet.

The pop singer seems to have gotten her groove back amid a rough year dealing with legal battles surrounding her conservatorship.

Watch the workout video, below.