obsessing over wedding

My fiancé and I are getting married in 8 short months after being engaged for over 3 years. For the past 3 weeks I've been doing nothing every day (besides working) but wedding planning. We got my dress, got the venue, got the save the dates and got a few of the decorations so far. My bridesmaids and I are going this weekend to pick out their dresses...my fiancé keeps telling me I don't need to do wedding planning every single day and that I'm stressing myself out too much but I find myself obsessing about it and about getting things done and ready. 8 months feels like a long time but for this I feel like it isn't and there's still SO much to do. I worry if I stop now then it'll never get done or it'll be too late. Did anyone else find themselves doing this during wedding planning or am I just being a bridezilla already? How can I stop myself from obsessively planning and chill out? Or should I? Need advice!