I agree with everything Sandy said...
I'd try to avoid labelling yourself. Do whatever makes you happy; if that involves taking testosterone, and going through the transition process, then you might want to go for that.
I didn't really have much doubt about it, myself, but when I
did wonder whether this was the right path for me, I asked myself a series of questions - the "What would you do anyway" string. In the end, I decided that even if I didn't transition, I would still want to get rid of my facial (and body) hair, I would still want to take hormones, I'd still dress very femininely, still use the girl voice, still want SRS and FFS and all that stuff. Basically, even if I didn't transition, I would still transition.

What you want to do and how far you want to go is up to you; thinking of transition as a whole package is not necessary. Additionally, there are certainly a great number of trans people that have not felt the need to transition their whole lives. Some discover it sooner, others find it later, and others-still have a period of time where they can live as their biological sex without issue, though how long this lasts is greatly variable between people.
A therapist that specializes in gender can be extremely helpful to sort this out with. I find that taking a step back to look at this analytically also helps...
Wishin' ya th'best