I agree with Megan. The heels and miniskirt made you stand out and you got unwanted attention.
Every time i've noticed a trans woman out in the world she was dressed in such a way as to stand out . In one case it was an older MTF person that was wearing a skirt and heels and had her hair teased up way high. By doing that she stood out and drew unwanted attention to herself. I'm sure that there were many other MTFs that I've encountered that I didn't notice because they blended in - they were dressed appropriately.
Another tip is to dress age-appropriate. My inner 16 year old girl loves the one mini skirt I have but it never leaves the house. Instead, I shoot for casual, tasteful, and not flamboyant clothes when I'm out, the same as any other well-to-do 51 year old woman would wear. I am even considering jettisoning my 4" heels in favor of flats just like I see every other woman wearing that is around my age.
I can't testify to my passing skills but so far no one has ever said a word about me while i've been out dressed this way.
And last - I know that this experience was extremely hard on you, and that you are feeling battered and bruised. Please be kind to yourself and pick yourself back up, learn from it and eventually try it again. You have every right to present how you wish so don't let a few ignorant people take that away from you.
~Eva