Baby rolling from back to belly but not belly to back?

My daughter just turned 4 months on the 25th. Shes been rolling from back to belly for a few days. But she can't seem to figure out how to do it the other way. When she rolls over she gets stuck lol and gets upset. Its gives me anxiety because she can't move and I feel like shes going to suffocate. 🙃 had anyone else experienced this?