Pre and postop photos would obviously greatly help. How do you feel your results are now that you are 4 months after surgery? Results of any plastic surgery procedure are meant to last for a good period of time, but it depends on what expectations you and your surgeon discussed prior to surgery. Sometimes, it appears to others that there has not been much of a change as the results are very natural appearing, even though big changes can be seen between the pre and postop photos.
You should judge your changes by the changes seen in your photos. I hope they provide some encouragement.