What should I do if I cannot pray to qibla due to lack of space, only with great effort and dedication?

Because I can perform the prayer, if the ‘owner’ is not there at that moment, in a room where I do have enough space but still cannot perform it comfortably. This is because first of all I have to put away all kinds of things and every time I get up from my sujud the carpet is pushed away. This all makes me lose my concentration in the prayer, which i firstly had when praying in my room (with a not 100% correct qibla).

You have to try to achieve facing the qiblah to the best of your ability, and if you are within 180 degrees of it then you are fine. I hope this helps