I'm sorry that some people have had bad experiences with shock collars. When used properly, they can serve a purpose.

They need to be set to the lightest possible amount of shock before even trying them. At this level the shock will feel like a static shock. Usually that is as much as a dog will need, and will only need it a couple of times to control behavior. They should not be used continuously.

I have a dog that felt he had to bark all the time while I was at work. I tried everything I could, but I couldn't be there everyday. And this is a stubborn dog. I finally put a shock collar on him when I was home. When he barked without reason, he got a reminder (light shock) and a yell from me. After three or four times, he got the message....until the next day. Then it only took once. After that, I would put the collar on, but without the battery. He hasn't barked during the day without reason since. He no longer needs the collar at all.

I used it on another dog (foster) and had the same results.

I don't recommend them for every problem dog. They have to be used very carefully and briefly for only certain dogs. Like a lot of other things, it's a training tool.

A two year old still is a puppy. Besides needing a lot of exercise, they need to be taught basic commands.

Have you been able to teach her sit, stay, down, quiet?