broke up w my bf of two years

so we just graduated and we start college next month and we’re actually going to the same one. but i haven’t been very happy for a couple months now so i decided that it was time to end things. i felt like we both needed time alone to find ourselves and mature more since we’re so young. after i did it i immediately felt like i made a mistake. he’s my best friend and we literally do almost everything together. and the fact that he won’t be that person in my life anymore makes me really sad. i don’t know what to do. we have SOOO many great memories that i don’t want to let go. and i still love him i just don’t know if this relationship is working anymore. should i get back with him or give it more time. helllpppoo