I'm a snake and Chinese rounded me up to a dragon because my b day is their a difference now?

Like you said 2015 isn't the year for snakes my birthday is 2/16/01 so I'm a dragon is there more of a chance I will make it in I give 100% everyday and I still fail I don't ever give up but things just fluctuate I'm at the top then back to the bottom is that part of being a snake but aren't i a dragon because my birthday rounds me to a dragon