Scared i'll cry the whole time!!!!

I'm such an emotional person, whenever I attend wedding I always cry. I get emotional from a lot of thing. I can't even seem to be able to choose a father daughter song.... How do I hold my emotions on the big day? Does anyone have tricks haha. I was teasing with my bridesmaids that for the rehearsal I should carry a bouquet of kleenex. ( when I went to look at our first hall for the reception I got overwhelmed and cried cuz it was making everything so real... i'm actually getting married!! I want to be prepared for the ceremony... where do you girls plan on having tissue or kleenex? Do I get my maid of honour to hold some for me? HAHA