I've been commuting into work since the Summer, now. I have improved in terms of being roadwise but still have the same kind of incidents that people talk about on this forum. My question is this - can theory (reading about advice on forums such as this and elsewhere) and practice by oneself be enough? Can I improve and cut down on incidents by actually going on a course or riding with a more experienced cyclist for a couple of trips to see how they cope with the road? I figure that it is my attitude that needs changing - I have a quick temper and am almost stubbornly assertive - which has it's advantages but does cycling 600 miles a month through London as I do require a more controlled and calm mind whilst remaining assertive and defensive?