a lot of trans youtubers become famous pre-t, maybe not by art, but by vlogging about their life. i think your problem is you want to present male when your voice doesn't pass as male yet, despite your looks. if you came out being trans, it may be different. it is possible to be famous in general and trans. i know a lot of trans men representation isn't out there, but the one that comes to mind is tom phelan. he played on the fosters as a pre everything trans man then came back after he went on hormones and had surgery. it was a good presentation of it i think and the most noticeable trans man playing a trans man character. i really liked the fosters for that alone.