If your going to want a good shave your edge must be sharp and thats it. Dovo's rarely come shave ready out of the box so that was probably your initial problem.

You can tell if a razor is shave ready with the first stroke on the side of your face. If its smooth and comfortable its ready if it pulls or needs pressure or just feels bad its not.

My first recommendation is to send your razor out to one of the honemeisters here so its really sharp. Then you can work on your technique. Working on your technique is fine but not with a dull razor.

Brian's video is interesting and obviously it works for him but much of what he does is unorthodox and many here would not recommend it especially the 90 degree shaving and not using the X pattern while honing and as you develop your skill you might find your own way with this thing but initially I would stick to the tried and true practices most of us use.