"I've been working really hard on my schoolwork, and my teachers are very happy with me," she said in a video she posted Thursday.
Rosie also revealed to her fans she passed her prep test in piano and is learning Spanish.
"I spend time every single day on my bars and my beam," Rosie added.
The now 10-year-old also revealed that she has landed her first solo in her singing class at stage school!
Meanwhile, just last year Sophia Grace Brownlee revealed it was difficult growing up in the spotlight.
"It's definitely hard," she told Bustle. "Because people still assume that I wear pink and tutus and, no I don't 'cause I'm 13 now, I've grown up and I've changed. And people just kind of have to accept that."
Sophia released a single last year titled, "Girl In the Mirror," but revealed she never saw herself as a professional performer.
"I've always sung. My parents noticed that I had quite a good voice, but when I was younger I didn't even think about being a singer when I was older," she added.