Are you American? Learn roundabouts before you come - watch YouTube videos. And learn the road signs - they’re not the same. I drove for 20 years in the US before I moved here and I’m still glad I took lessons in the UK. It’s not just driving on the left, it’s turning from the left and merging from the opposite direction on motorways. The fast lane is the opposite one. I would not drive if I was just coming on holiday - there are trains to most places.