I live in central Oklahoma when should I cut my rose bushes back?

WHEN TO PRUNE ROSES IN ZONES 5 TO 7: Where the average low temperatures range from -20F to 10F, pruning and shaping of roses typically occurs in mid-March to early May.

A second light shearing in June after the first spring bloom will encourage more flowers by July and August.

The link below is more indepth.

https://www.thespruce.com/roses-how-and-when-to-prune-1403040

You should prune back before the frost in the fall and after the frost in the spring. The roses should bloom with a vengeance.

Prune back as far as you want. Remove excess shoots And crossovers, any of those long long long straight ones. I make the limb cuts just above a 5-leaf cluster. The rose will branch off wherever you cut. Some like to cut back almost to the ground or you could leave more of the bush but shape it up.

https://www.thespruce.com/roses-how-and-when-to-prune-1403040

I would call OSU extension center. They have master gardeners groups all over the state. They answer almost any questions about gardening, plants or trees.