Advice please!!😭

Okay so I have a boyfriend and we've been together since June 18th. I'm haply with our relationship but I always blow things out of proportion or I always over exaggerate. Onr day we had a petty argument because he didn't text me all day that day but he was all on Facebook sharing posts. I felt like he could've at least said "Hi" or something so when I texted him and told him what was on my mind he told me that me getting mad about him being on Facebook but not texting me was kinda stupid and that just because he doesn't text me doesn't mean that he doesn't think about me. After that text I felt completely guilty. What should I do to keep from over exaggerating or blowing things out of proportion?