Used? Please I need help

So I was dumped about a day ago by someone who I've been on and off with for about a year and four months (we been together together for a year and 2 months). Well its officially officially over and I'm extremely hurt. Basically he told me that while he cared about me, and I do believe in some way he did based off little things he did that complete assholes wouldnt do, he never loved me getting back together this time. On top of that he spent a week at my house before dumping me and the day before had sex with me knowing full well he was going to break up with me. His excuse for that was "we have great sex. Best sex I ever had". Now I'm left extremely hurt and upset. I'm mad at myself for letting this happen again. I'm mad that he did it again. I'm really sad cause I loved him very deeply and was betrayed once more. I go through phases being fine to bawling my eyes out and I dont know whether its shock or that we've gone through this before or both. I just really need advice on what to do because I dont start school again till Jan 8th (I'm nearing the end of my pre med if anyone is wondering). He finally gets to transfer to his dream school. (Side note he also gave me a school shirt, hoodie, and hat of his school for Christmas knowing he was going to break up with me). I would really appreciate pointers, advice, anything really on what yall did when you were heartbroken or what you think I should do.