Setting a date

My fiancé and I got engaged February of 2013. We are in no rush to walk down the isle we've even decided to go off birth control and see what happens. I'm happy with waiting but I feel myself jealous of our couple friend that just got engaged in December 2014 and are already planning and reserving things. Makes me want all that bride stuff. Looking for advice, I know jealousy is normal but I feel as if it may be eating away at me. Ugh.