I was practicing moving a pen a few minutes ago. And I held my breath until my forehead starting feeling pressured. Then, when I looked away from the pen, it just rolled! On an instant!
I tried to recreate it, this time instead of holding my breath, I just tried to re-create that feeling in my forehead, and it worked! I am almost to the point where I can roll a pen without fail! I just need to practice this.
Try it, it may work. For some reason, taking a large exhale (away from the object) causes the brain to get relaxed and things work.