The most inept mechanic is not the beginner but the reckless intermediate. A few years’ experience, a bit of success, and you start to get impatient and careless. You can see how much you have learned, but all that you don’t know is invisible. Your growing confidence is admirable, but see that it doesn’t grow faster than is warranted. Keep it in check. Watch yourself for the temptations to make shortcuts – temptations to which we are all subject. Force yourself to maintain those careful habits that got you this far. The swiftness and deftness of the expert is developed by the practice of care, not by careless shortcuts. As you gather momentum, downshift early or you will have to slam on the brakes when it is too late.