Help! how do i write a transfer essay when i havent attended the university i deferred admission at?

I deferred admission for a year to do volunteering at home with permission from my college dean and have taken classes at my local university as a non degree student so do i just write about the university im enroled as a non degree student :(? Idk how to write about how the university ive deferred admission to isnt the right one and compare it to the school i want to attend :c

I think that will sound a little suspect to adcoms because how do you know that the school you’ve deferred admission to isn’t the right one if you haven’t lived or studied there?