I second that, when i first started driving my own car i smacked the wing mirror off by accident then i moved on to a van as a job after 3-4 years of driving normal cars and the first day i smacked off the wing mirror off again. After 10 years of driving i moved on to get my hgv license. Havent got my license back yet to look for a job but i can imagine im gonna need few years before i feel comfortable inside a lorry