I ride clipless exclusively. Wouldn't dream of anything else at this point. And I fall at least once on almost every ride. The way I look at it, it means that I am pushing myself to get better. I will usually back off after a fall, but not always. I walk stuff if I'm either experiencing a moment of insecurity or simply don't have the skills to even attempt it without threat of major bodily injury. Sure, I get miffed about it all and occasionally draw blood on my falls, but I am getting better.

Stick with it. You are an athlete! Attack, attack, attack!