I would suggest to book sessions with professional models. This enables you to focus on your gear and lighting while the model already knows their posing and maybe can even help with finding good compositions. If you’re just getting into working with people maybe there’s a workshop you can attend in your area? I would say if you have to direct everything even the posing because your model might not be super confident in front of the camera will lead to frustration and bad results which hinders you to get better fast. Definitely a worthwhile investment!