Don't give up..it does get easier. I actually unclip with my right foot. It feels more natural to me. I don't have very much advice other then keep trying, you will get it. Like you said in your above post, try to unclip in advance and keep your cleat away from the clip if you can. Maybe practice on the road near your street...ride as slow as you are comfortable riding and practice clipping in and out without putting your foot down. Good luck and keep at it!!