As the Protagonist, Am I Schizophrenic?

I, Zhang Qiu, female, 17, a senior in high school. Inexplicably, I became a young lady named Tang Ge. But the original Zhang Qiu seemed to have disappeared from the world. What on earth is going on! Did you know that the mental state of high school seniors is already very worrying? Okay, okay, they said I was schizophrenic. Do I believe it? I don't quite believe it. So me! Zhang Qiu's journey of exploration began. I met Chen Mo, a loyal dog puppy on the road, and he was really annoyed. However, he supports me unconditionally! He will be a good helper, right? Probably?