Yes, stop shooting and go back to birds and only birds. Get some pigeons or quail and build her drive back up. You started off the wrong way and now you have to make hunting fun for her without any gunfire. Unfortunately undoing the impact made by the bad experience will take time. Best thing now is a small pen with quail or pigeons and get her excited about them. After 6 weeks of getting her on birds and building her drive you can begin to introduce to the gun the safer way. With someone at a distance have them clap two 2x4's yo get her while she is focused on a tethered bird. If no reaction keep moving them closer until you can Crack the boards together beside her. After that move up to 22, then 410, 20 ga and then 12 ga. At anytime she reacts yo Crack STOP IMMEDIATELY FOR THE DAY and go back to getting her focused on birds. DO NOT RUSH THIS!!!!! If you do you will have to start all over again. In the future use this method to introduce your pip to gunfire, easier to do it the right way than trying to fix a bad behavior you created.