What do you do when you've been hit and the person deny hitting you

I was hit and the woman tried to flee so i got behind her and called 911 to report the incident and give the license plate number while behind her. 911 agents said to stop following her and i did. I file a police report that same nightcame. The next day I hired an attorney to the case. The oman said that she didnt do it and was never there at the location. I have a small lexus and she has a big 2010 tahoe. Her truck hardly had any scratches and damages but my lexus is smashed in on the back. After 2 months, dr visits, calling the incident in while in persute and filing a police report my attorney finally requested that the car be inspected. They ended up dropping the case stating that her truck didnt show any damages. I did everything i was suppose to do to insure this lady could not get away with it and she still did. What can i do from here?