Hi, I wouldn't worry too much about your results until all the swelling has gone down. Your chin is likely to get stronger as the swelling goes down and maybe you will be happier then. I think you are just worried about having such a big change, and obviously you are not used to a face that looks like that.
Personally speaking I think you look better now, even with the swelling. I'm a man and to me your face seems more attractive/cuter after surgery. Give it a few weeks and you will probably be very pleased.