How do I move on?

Hey, so me and my ex were together for 9 months and on the first of May he broke up with me. He has broken up with me before but I begged him to come back and he did. This time I didn't beg. I love myself enough to know that what was happening wasn't right. He was my first love and technically my first boyfriend (I don't count the other guy). I gave my all to him and now that im on the outside looking in, I see that he didn't give his all to me.but still, about 3 months later Im still hurting. Any advice? I want to hear what other people think or feel. Thank you.