Baby rolling face down when sleeping?

My baby is almost 4 months and just learned to roll! Today was the first time she rolled onto her belly in her sleep. But she was face down so now I’m worried. Is this concerning at this age? Should I turn her into her back? How am *I* supposed to sleep at night?

And a second issue is that she is so obsessed with rolling onto her tummy but she ends up crying and I do know why. Is she stuck maybe?