whoa! being sufficiently timid to wait 3 years to try, i went for a test ride and crashed almost immediately. SO I paid a professional to give me a lesson. this is what she did.
she took me on a very manicured grass field. she told me to ride WITHOUT clipping in. after a while she allowed me to clip in JUST ONE FOOT. clip in clip out. I did that constantly. THen we practiced the correct sequences for stopping. THen we tried the other foot. then all together.

take it slow.
good luck. I never fell because of pedals again.