How do I move my apps

i can’t move my apps when I hold them down and try to slide them to where I want. Instead it keeps showing other things, I tried to use the ‘edit home screen’ thing but it just made it so much worse. And I don’t get the addition and subtraction widget signs in the top corner when I click on the ‘edit home screen’ either. When I clicked on the subtraction sign on one of the apps it took it off the screen and I had to go to the App Store to get it back. And therefore I DONT KNOW HOW TO MOVE MY APPS TO WHERE I WANT THEM