One of the key aspects to becoming and staying a safe and conscientious driver is maintaining a good level of concentration when behind the wheel. This means staying aware of the traffic and your surroundings at all times, to identify any sudden changes that may appear without warning, as well as to identify any problems with your car that could spring up and put yourself or others at risk.
Of course it is also good to feel relaxed when driving, so try not to concentrate too strenuously or you may find yourself making more mistakes.
Safe driving from Britannia!