Its never a good idea to hibernate a tortoise until you have had it for 1 year and are positive it is in good health. So, no, I wouldn't hibernate this year. Take the year to do some reading and prepare for next winter!

http://www.slowcoach.org.uk/care/hibernat/hibernat.html

http://www.tortoisetrust.org/articles/hints.html

http://www.tortoisetrust.org/articles/safer.html