Go for it! I just got back into the hobby a little less than a month ago after being out of it for over 4 years (between getting married and working on my 69 Mach 1 I havent had much time for anything else). I am so glad that I am back flying again. I'm sure that you will do fine. My only flying experience was with a Tower Hobbies trainer, but I walked right out the first day with a new Sig Four Star .40 and all was well, even though it was my first taildragger experience and my first landing was a dead stick

My point is, I was nervous about getting back into the hobby as well, and the thought of being a "rookie" again sucks, but it is all worth it when you get that plane in the air again. Good luck to you!