Wobbly starts; how to fix?

[SadieKate]

Raise clipped-in foot to about the 2 o'clock position.
Push down hard with that foot to get you coasting at steady pace.
Clipped in foot should now be at 6 o'clock position.

Maybe I should clarify the 10 o'clock position. This is in front of the bottom bracket (sheldon's 45 degrees). To me, 2 o'clock is still on the upstroke. Are we saying the same thing?

And I can't clip in when the pedal is at the top of the crank - 12 o'clock. Am I odd? That's why I recommend giving the crank a few turns to build up some speed and momentum so you can coast with the unclipped pedal at 6 o'clock, put your foot on it and use weight to clip in. If you don't have sufficient momentum to coast in a straight line, don't look down trying to clip in.

As you get more skilled, your foot will find the pedal automatically and you will be more skilled at riding a straight line at lower speeds. Right now, get your speed up with only one foot clipped in before trying to clip in the other.