What is your process now? My first guess with limited information is to let it rest at room temp for a while before shaping it, and don't work it too much. If it's springing back on you, it needs to rest.
That’s exactly what’s happening. I try stretching it out on the counter, but it springs back. So I pick it up and and start to turn it by the edges while letting it hang the stretch. It kind of works but of course never comes out round. More rectangle than anything else