Starting New Job FINALLY after 2 Years, Advice for Prep

Hi. Passed my boards in August of 2010. Circumstances in my personal life delayed me looking for a job for a good eight months. When I finally started looking, got no response or kept getting need one year of experience. It has been a long waiting game and I wanted to give up a lot, but I was just recently offered my first job doing home care, part time. I took it, and I am excited but oh so scared that I have forgotten so much. Any ideas what what I can do to prep and review? Any tips for home care? Thanks really appreciate this! So want this to work out, but been out of the game so long a little intimdating! I do work as a patient care tech at a hospital for the last few years, so I am not completely out of the loop.