About 25 years ago I retook my driving test twice, once for a bus licence and once for a HGV licence, doing that improved my driving immensely
Its now always in the back of my mind about driving large vehicles and a couple of the things it really impresses on you is not going into a road without being able to see a reasonable distance down it and always reversing into a parking space so that u can see when you are coming back out, It also impresses on you to have patience with other road users who dont drive vehicles as small or large as your own.
A couple of lessons that stands one in good stead when posting on Mudcat too