How do I learn not to be too attactched to a guy?

weve been datingonly two days, and i already feel attached. We hung out for two days striaght, yes all night and day and then we went to the mall at 7am-11pm when i dropped him off i still wanted to hangout with him, what is wrong with me wy do i do this with every guy?? then if we dont hangout i get sad and cry and freak out... how do i become independent not so possessive??