I'm considering renting (hiring?) a car for my 2nd week in Scotland after the empeg meet. I'm pretty nervous driving anyone elses car, so adding right hand drive to that equation seems pretty scary. That and I don't know the signs, rules, and customs of the road.

Is it advisable to rent a car if I want to see more of the outdoors? Or could I get by using train and bus? Any tips for renting a car? Thanks.