How to place the AI-model of myself into an UNCHANGED (!) background ?

My beginner prompts are very simple and clear:

Set myself into the image ! (which works easily and well with Nano Banana, ChatGPT for example)

It’s doesn’t work for me with Adobe FireFly and the Adobe-KI-model of myself.

When I try to set myself into a picture of my hometown Dresden then the background gets changed into an irrelevant fantasy world, a weird mix of Prague and Paris with some Dresden buildings.

I don’t want any building changed, absolutely please no, stop !

Is there an easy way to do so ? I successfully tried the fill-feature, I can set a reference photo to fill me in, but I look for a way to use the KI-model of myself as well ?