A few tricks...
Place a sturdy table or bench off to one side that you can lean on when you first start...forget the stupid "starting in a doorway" trick.
Use a low gear and get your cadence up to 80-90 rpm or better quickly...don't try to slog along in gear with no wheel speed. Getting the bike moving is actually easier because you get the gyro effect of the wheels to help you stay up and stay smooth. You'll notice the guy in the video gets his pedal rpm up quickly.
Eyes forward, get a TV propped up at 4' to 5' off the ground, don't stare at your bars or front wheel.
Make sure your front wheel is sitting close to straight over the top of the front roller.
Piece of cake...before long you'll be standing up pedaling...