yes, walking is nothing to be ashamed of and crashing is going to happen. i have been mtb'ing for the better part of 20 years, and i walk plenty. probably because at 50+ i dont bounce very well, more of a splat. that said, sunday i crashed on a minimal difficulty obstacle that i have ridden often, just made a bad decision, ie too much speed for my skill set.
a final thought, confidence can supplement skill and risk taking and = lotso fun
i typically try to ride quarry ridge on sat @6ish, camrock3 on sun @2ish, if that works for your schedule.