feminine appearance

I don't think I can guide you, as I don't know what you look like, other than the description you gave above, it's difficult without seeing someone, how they move etc.

I would get your eyebrows professionally shaped by a beautician, this will stand you in good stead for having some kind of shape to stick to when you pluck them yourself.

And I agree about the clothing, in that you shold be attempting to dressing for 'everyday' wear, most women don't wear high heels/strappy tops/short skirts on a daily basis. Long, flowing, covering any sore spots, something that may create some curves wear there aren't many. Stick with things that are safe to begin with, until you have mastered sitting/standing/walking in various types of clothing.