u/Blue-gacha-sky-YT

Okay so, I have a couple questions that I'm unsure of,

I'm not very knowledgeable of this topic and I don't really trust Google to give me the right information.

my first question: Is it plurality to have multiple personas? I have a couple, mostly online but i physically act different when I'm "acting" as the online persona? I'm unsure of what thats called.

my second question: If it is plurality, is it normal for the personas to be the opposite gender to me? I've noticed the majority are male, while I am not.

As I said I don't know much about this.