Welcome, and you picked an awesome ride! Not that we're overly biased here!! Spent quite a few caravaning trips and boy scout/ air cadet camping/ hiking/ outward bounds events on the North Yorkshire Moors. One of my favourite places and one that I miss the most since becoming an expat in the US! You certainly do have some great twisty roads available to you. I remember borrowing my parents car and going for some early solo runs shortly after passing my test. You very quickly learn the width of your vehicle and how much room on the road you really need!!
Plenty of mods here on the forum to browse/search through, but your experienced friend is right. Ride and figure out what you need. The only caveat I add to that is that if you're seriously thinking about a few mods that involve removing plastics or playing with electrics, then I would consider grouping those together and getting them done at one time!!
Oh, and it didn't happen unless there are pictures. Just sayin'