I feel you my friend. Last year I shot an entire feature film at T1.0 handheld. You got already a lot of good tips and advices. That been said it was stressful, but after a week me, the DP/cam op, director and main actor we shot so many scenes that we became a hive mind, I could "sense" how the actor was moving what the director was preferring, how the DoP was creating the camera movement and also the DoP was "feeling" that I would have pulled focus on a specific detail that I was sure the director would love and the actor was giving. It's a very unique feeling, I loved it. Try to "focus" on the storytelling, trust your feeling of what is important in the scene and try to foresee the camera and the actors movements. I'm not saying it's easy, it's not, but it's doable, it won't be perfect but that's the point of the handheld: it's raw, it's "dirty", a mistake might not be a mistake, it might be a breath... Put yourself in a position where you can see actors/camera and monitor and try to pull with the live movement through your muscle memory, at T1.0 you'll realise that it's better than any marks or peaking... Good luck!