Did my skills test earlier this year and wondered what I had been worrying about when I landed. Just fly competently (I assume you can, you wouldn't be doing a skills test otherwise!!
) and you'll be OK, and don't panic, you don't fail if you make a little slip. The guy who examined me said basically it was a test of whether he would allow me to fly his children, in other words he was looking for safe flying and safe flying mentality, not whether I'd drifted off course by half a degree.
Good luck!