Update:
I took her out back today without being in her kennel or leash. I let her know that I had a handful of treats in my hand so she was VERY excited! She went out back and stayed right next to me because she wanted a treat at first. I started walking around the yard toward the area she goes potty in and she went so I gave her a treat. She was happy about it and followed me all around the back yard after that. When we came back in, I gave her another one for being so good. I also praised her the whole time for being such a good girl! What a different dog when she knows you have treats around.
She is signed up for obedience classes but they dont start until the first week of August, by the way.