heartbroken

I've been going threw anxiety, pain, mood swings, and depression for the last week. I can't seem so shake it. My ex told me that he doesn't want me no more and that he's happy. That I should move on and I don't know how to. He's been dating. This girl after we broke up. Right after. I stopped talking to him and he kept calling me then I finally agree to a date. Then he went cold turkey on me. Blocked me and everything. Now I'm left here depressed and can't stop thinking about him and I can't stop crying. I just found out the girl has the same birthday as me. That shit stings. Makes me not even want to celebrate my birthday anymore. I've been trying so hard to let go but I can't seem to let go. I don't know what to do anymore. I just want this bad dream to go away.   I want to be ok. I want to be fine.