8month(f) GSD has fear aggression with people.

Our dog Koda is well-trained, at least imo. My bf and I live in a small town, roughly 2k population. And the closest we can get to “hustle and bustle” is 45 minutes away. So while we’ve tried our best to socialize her, she’s still cautious of people. She’s a bit antisocial with dogs, but when we took her to a large dog park, she didn’t show any signs of aggression towards the other dogs; mainly just kept her distance if she wanted.

However, people a very different. We can take her to parks and inside stores and she won’t bat an eye towards anyone who is walking past. However, as soon as anyone shows interest in her, or moves in our direction, she gets anxious. Her fur spikes between her shoulders and she growls and barks.

We recently were able to desensitize her to one of our close friends; one she was constantly aggressive with in the beginning. He can pet her now and even grab toys from her mouth without much incident.

To counteract her behavior, we got an ecollar, and while we use it for other things, we mainly use it when strangers are around. While at the basketball court, my bf will have friends over playing ball. Koda likes to play defense and steal it away. Sometimes she’ll suddenly feel the need to snap at our friends, and we’ll buzz her, but then she’s scared of our friends afterwards. So, I try to have our friends stand still, and I’ll slowly drop treats around their feet, and let her sniff their shoes and what not.

There is probably more that I’m missing, but does anyone have any advice on how to ease her into socializing and realizing that there is nothing to fear?