Temporary iCloud backup didn't complete, I don't have the old phone anymore.. Please help!

I just got a replacement 13pro and did a temporary backup from the old one. I just sent the old iphone through the post office so I no longer have that.

When setting up my new phone, the temporary backup never completed and I manually added all my apps but, of course, all of my app data didn't transfer (all the games I had and the progress I made.. gone). My initial instinct is to reset the new phone and try again.. I'm just concerned if I do this, will that temporary backup disappear? I don't want to risk it if there's another option to ensure the temporary backup becomes more permanent. Please help!