Awww, Jewlz, you'll rock it. Just take it slow.
When I had to drive to Liverpool airport, I felt the same way. Because even though it's only 20 miles away, OMG I had never been there before, I would be alone, and I would kill the car and be stranded forever (or, you know, so I thought), so I made myself feel better with lots of contingency plans. I had phone numbers for everyone imaginable (as DH was being PICKED UP at the airport and therefor had abandoned me!) including a few people with cars who could come get me if I did panic and give up. I traced the route on Google Maps so I had a visual of where I was going and things *did* look a little familiar, and I said *screw it* and went at or three miles below the speed limit the entire time, even on the small country roads where people think 80 miles an hour is an appropriate speed. I just gave myself a long time to get there.
You will do great!