Thanks mate.
OP, I'm a RoSPA Gold who went on to become an advanced driving coach for RoSPA's RoADAR course. I've done a fair amount of coaching with PH's 'Reg Local' (retired police class I advanced course instructor) as well. As some others have said above, advanced driving tuition is the best thing you'll ever do for yourself. Whether you're just a 'normal driver', a professional driver, someone with an interest in tracking/racing etc, or other; there's always something to learn. All main organisations (RoSPA, IAM etc) use the police driving handbook 'Roadcraft'. You can grab a copy on Amazon or similar if you want to dip your toes in.
Essentially the 'system' retrains the way you handle hazards and approach a piece of road, so that you're always in the correct position, speed and gear at any given time. There's a bit of theory behind it, but it's mostly practical learning and practice. Once you get the hang of it you'll completely transform the way you drive. You'll get from A to B faster, smoother and with less fuss, be less prone to accidents, have a *significantly* higher ability to assess and process risks, and you'll draw less attention to yourself while doing it. One of the world's best 'wheel men', John Lyon, always said a good driver will be able to cross the country on the back roads, at an average of 50mph, seamlessly overtaking and blending in as needed, without any other driver having memory of them once they get home. It's about smoothness, subtlety and managing risk to be able to control the vehicle with absolute precision and smoothness to make the best progress possible.
Have a watch of 'Reg Local's' video series on YouTube. It's literally an online course in advanced driving, from introduction through gears, steering, brakes, overtaking, progress, smoothness, cornering lines, you name it.
Advanced driving has something of an old pipe and slippers image, for some. But the truth is it's the foundation of every police pursuit, every blood run, every ambulance recovery and most of the world's racing drivers' abilities. It's as fun as you make it, and it will really open your eyes. You never stop learning.