Getting started is hard so you've taken a big step already. And great job losing a pound already!
I only have one bit of advice for you - something I wish I had learned to do when I was your age. Losing weight it a noble goal and will do wonders for your health and spirit. With that said, seeing the physical changes is always the FUN part. Remember, though, that we are all built differently and your expectations should be for YOUR body type. I, like you, am only 5'2". I have broad shoulders, am big chested and have naturally muscular calves. I've always felt like my head looked like a little marble on top my shoulders and that my calves made my short legs look like tree trunks. Dieting was always horribly discouraging. But that was only because, in the back of my mind, my goal was to have the body of a tall, slender person. Once I embraced what I have and set physical goals accordingly, losing weight became much easier. It is amazing how encouraging having ATTAINABLE goals can be!
And, by the way, we have the same weight goals too! My first stop is 135 but after that I expect I will take my time working towards 120-115.