I do all the driving now and quite enjoy it. Im ok once I'm actually on the motorway but I'm happy to stay on the inside lane unless something ahead is quite slow. As has been said, I don't like driving at night. It's to do with the dazzle plus the fact my brain takes longer to process what the road ahead looks like when it's dark, whether there is a bend in the road, etc, so I tend to keep my eyes fixed on the white line in the middle. Because of this I avoid night driving. Nowadays I rarely need to anyway. I do find, too, that people overtake me more. A quick check shows I may be doing just over the speed limit, but it still happens. People get annoyed if I'm 'only' doing 32 in an urban area, where there are no speed cameras. I don't dither and I would never drive below the limit, so that annoys me a bit. It only happens in areas I'm not used to. Locally I just go with the flow.
NK yes, I would take a refresher. No shame at all. Why should there be? It shows you to be a responsible driver and you will probably enjoy it.