I know when you read the story, I got lots of things wrong but believe me, I know my Dragonball Z. But I had to tweak my story to make sense.
Cell is in a tank made of an unknown alloy, something very strong.
I know Pan was born in the DBZ AF storyline, but in my story, she's already a teen.
Trunks didn't know that Pan is Goku's granddaughter.
Trunks can't turn Ssj yet.
The androids are stronger in this time line.
Trunks didn't go back in time to give Goku the medicine, so Goku died.
The only reason that the population is still thriving is that the humans amuse the androids.