SAN DIEGO — A 16-year-old transgender girl who spoke on YouTube about being bullied at school in Southern California killed herself, a support group said, raising questions about what educators can and should do to support students who change gender identity.

Taylor Alesana was constantly picked on by peers before taking her life last week, the North County LGBTQ Resource Center said.

“With few adults to turn to, and with no support from her school, her life became too difficult,” the group said. “Taylor was a beautiful and courageous girl, and all she wanted was acceptance.”

Alesana attended meetings at the center and was very supportive of others, said Max Disposti, the group’s executive director. She posted a series of online videos that included makeup tutorials and accounts of her struggles.

In a video posted in October, she said bullying began at a San Diego-area middle school when she disclosed that she was bisexual.

“I fear for anyone that’s even just a little bit different. They know what bullying is like,” she said.

Alesana said her family recently moved to Fallbrook, 70 miles north, and that she was “living my life as a girl now,” wearing female clothing on weekends and during summer. She eventually found friends at Fallbrook High School but encountered rejection first.

“I made a couple (friends), went from group to group. The group would usually kick me out after they realized, ‘Oh, you’re different,”‘ she said.

Alesana had a strong relationship with her school counselor but administrators “didn’t take the necessary steps,” Disposti said.

Experts said schools must train staff to be alert to bullying and instill in students that it is unacceptable, but they also need to acknowledge any of their own biases.