Break the Matrix

Not sure if a I'm doing right.. but what I basically do is straighten the back of my neck (lifting up the back of the cranium basically) and the double chin and chin tuck comes naturally because of that..

that's exactly right. feel around for trigger points in the suboccipital muscles. Once you release those the cranium can fully rotate forward and the position will feel natural. But its also integral that you stop looking down at your phone for craning head forward to look at laptop.