Frustrating potty day

SOOOOOOOOOOOOO....... we are working on Anna and potty training.
As far as TT she is doing great. She even stays dry while she sleeps. Poop is another story. We spend HOURS going to the bathroom every 5 minutes (because she tells me she has to go) only for her to be too scared to try. Even when we are out we CONSTANTLY go to the bathroom. She says she has to go, I scoop her up and run through the store like a crazy person to the bathroom only for her to say "I don't need to go". As you can imagine this is getting old and I'm a little scared to leave the house. At home she does the same thing. Once she FINALLY goes she is completely normal the rest of the day and only says she has to go potty when she really has to go. These videos are after a LONG morning of trying with no success. I was extrememly frustrated because she kept screaming she had to go and then wouldn't even try. She knew I was mad. I put the camera down (she didn't know it was on) and sat with her while we were eating lunch. I wasn't really talking to her because my patience was shot. She kept looking up at me without REALLY looking at me and then asked if I was mad. I just think it is so funny. The next video is just a little chit chat over lunch