I guess I'm not Jewish then. My dad is Jewish 110% and my mom is Catholic 110%. So I must be catholic. I did get my Bar Mitzvah and was raised on Judaism and Catholicism, fyi. You FAIL.
Jews don't believe in Jesus as a messenger of God and Christians do and they also believe that he was the son of God, so the two religions beliefs regarding these things highly vary so you would have to take one side then...