A couple of things...
I believe Irulan "meant" (and I didn't see the post) for you to use
a Teflon based produced--NOT OIL...we've talked about the fact that oil is a no-no for most road/mountain bikes. Spin bikes, yeah, 3-in-one is used...

"Teflon-Plus" is common and cost about $3.00 in most cycle shops, and, just a drop on the pedal where you clip in. Then work it around.

Another think I've taught myself on clipping in/out is to practice on a parking lot clipping BOTH feet out simultaneously (yes!)
...just practice.

Relying on one foot all the time may be iffy in the long run; out of habit, I usually clip-out consistantly with one foot over the other on an anticipated stop. (and quite honestly I can't tell you which foot). I always clip in on my right and catch the left as I crank.
Terry