"Scootering" my bike

[Susan]

Maybe try this -
Engage both your brakes.
Stand over your bike, one foot on the pedal (usually the left foot). Pedal position for this pedal up, but not at 12 o clock, more at 10 or 9, if you'd look at it from the side.
Keep your brakes engaged.
Now push of your other foot and put weight on the foot on the pedal. You can do it just for a very short time and put your foot back on the ground. If you practice, you can stand on the pedal for quite a long time, balancing, so you are not in a hurry.

If you feel secure doing this, you can release your brakes, and all you have to do now is push down on the foot to get your bike going.

Imagine the pedal you are standing on is the first step of a ladder, it's the same movement.