@Filene I can't influence the physical nearly as much the mental, so most of my work is the mental.

Then I decide what I am.

I am Ulfra, Vedia, Elodia, Sola... I define those forms for myself, what they mean to me, and then call them up when I need them for something. Or when I want to toy around with their mindset, perspective, personality, etc.

But you can do it with one, if you wish. Just your Ideal Self. Imagine what the person who does what you most want to do would do, then be that person. (Neil Gaiman advice right there -- I recommend looking up his graduation speech)