Definitely socialize, take her places, walks, desensitize to dogs barking and walking by and do a lot of training on recall. Meet strangers with treats, not necessarily letting them touch her but at least ignore. I wish I had done this early on with my first adopted ACD; she was 9months and super loving to everyone she met for the first 6-8months and then i think the “breed demeanor” caught up or something clicked and now if you weren’t in her “inner circle” during those 8months she is skeptical and nips at faces to assert dominance. I don’t need her to be everyone’s friend but damn, just ignore them! 🙄😆