That really depends on what you mean by "full time". I always dress pretty much the way I intend to after transition (with the exception of underwear, and I intend to wear less baggy clothing once I'm more comfortable with my body), but that style is pretty androgynous, and while I do want to be gendered female, I do not intend to insist on it in public, and with my family I've already tried and had them refuse.
So you could say I'm "full time", if by "full time" you mean "dressing and acting the way I intend to after transition". Or you could say I'm not even part time, since I'm not going out of my way to be gendered female.