Sometimes it’s ok to take a step backwards.
Training your dog isn’t always going to be a perfect upward trajectory. We have our good days and our not so good days.
If your pup is tired, or overaroused, or you’re making things too hard- you are setting them up to fail by giving them too many difficult things to do.
If your dog is not understanding the exercise or cue anymore, step back to something easier, and end the training session on something positive that they easily can do.
Dog training is not a perfect science of every day we get better as handlers and our dog understands better- it’s up and down. But look at the overall picture- I bet you’re making more progress than you think.