Wasting credits on failed image generate

I have been using image generate and image edit if the image does not quite match what I am going for. I have had several images produce unusable results in the first instance not following the prompts.

I have an image of a terrace ball, there are seating areas on the lower level. I have instructed that two men should be seated in the chairs, provided an image prompt for one of the men and Gemma the female character has moved from the balcony overlooking the dance floor down to the lower levels to stand by the men seated in chairs. 

The image generated created a whole new look to the setting and put some chairs on the balcony, removing the stairs down to the lower level. 

Then we finally got gemma down to the lower level but she was duplicated, standing on the balcony and the lower level wearing a different outfit. 

I have also had images generate that would have worked but it then seemed to crash and reset, not providing the image but using the credits associated. This has happened several times. 

The final image that generated after an edit is so blurred it cannot be used. I have used almost 2000 credits and only generated 22 usable images