Dear Alice,
I'm sorry you're going through angst and I'm sorry that we all have to go through this middle-ground. But know that, after transitioning, many post ops find that there isn't really all that difference between the genders...a lot of it is societal conditioning as to what each gender supposidly is.
I do, as some have mentioned, worry about whether your appreciation of dresses is important in your "deciding to transition." Consider what therapists sometimes tell people who overeat chocolate and sweets. They say, "eat nothing but sweets for awhile to see if you REALLY like it." If you wear dresses every day, as I'm sure you can guess, the thrill lessens and, after awhile, it is just clothes. And that's what FULL TIMING is all about...getting the thrill out and seeing what makes you truly comfortable.
And, as others too have said, it's what YOU think that makes your life, not what a therapist theorizes. The best therapists let YOU figure out your future. And maybe the best is where you are now, a little of this and a little of that. You have to decide.
Teri Anne