"So , i havent raced fly for a long time and i have been working so my fifty would be down but it keeps going back up. One practice i will be able to swim a 33 and the next practice i saw a 39 -____-. I really want to get a 1:06 but i am not really sure i can make it what should i do ?"

Try scrolling through here http://swimthefly.tumblr.com/tagged/tips

or here http://swimthefly.tumblr.com/tagged/butterfly.

But your best bet would be to talk to your coach.