I feel like my life is ending..I literally want to die.

Hey guys..I broke up with my boyfriend because I wanted to figure my life out first cause through out the relationship I was only focused on him and sometimes too paranoid about little things he did and made things worse. I broke things off badly and shortly with very few words cause I ddnt want to breakdown in public..this was after a fight where we didn't talk for two days. I later explained to him exactly why I broke things off..and it's not that I stopped loving him. He never said anything till after a week and said I hurt him pretty bad. I was breaking too...but this was necessary because I was drained of everything that was me in the relationship. I told him how felt and that I ddnt want him to let me go but he then told me he didn't love me anymore. I felt an ache so bad. I literally can't eat..I cry all the time. I feel crazy. My heart aches..my soul is tired and it's just two weeks. I have tried so hard to stay positive but it's nerve wrecking and takes alot of energy. I can't sleep..am overthing alot of questions and reasons. I don't know what to do. Has anybody ever gone through this. I need help. I don't have friends to talk to. He was my everything and I feel so much guilt and regret for breaking up. But I was losing my self I couldn't define myself at all without him. I really need help. Cause I don't see reason for living even though I know that life is too precious.