I think Pikelets going to wash out of assistance dog training

we went out yesterday to a garden centre thats near by. It has 3 different rooms first room is large, Pikelet was fine she was really confident which is a huge improvement from when we first took her there!
Then next room is a very small darkish room with the dog stuff in it. It leads to the next room thats as big as the first one. They had stands with advertisement screen thing’s playing right by the door way to the next room. Pikelet got scared of something and kept running away from the entrance we tried to get her through a few times and she kept running back to hide in the dog area, so I tried going back in the first room, she was better but still nervous!
we went back final got her past the screens that was what we thought the issue was! And she was still nervous tried walking around a bit with lots of treats (she was getting a lot of them the entire time) she got a bit better but still nervous! We went outside she was very nervous when we went out but she did get better again but still not confident puppy

.
We drove a bit to a area outside that she had been to before, she was scared of the duck, the road and someone on a bench! We ended up leaving again, we took her to a small park she was still a bit nervous in the park but she did eventually calm down there
we are going to try a few things and see how she does but I think she has all ready washed out

. My mother does not want to rehome her at all, I don’t really either

but I do need a spare AD