I've been through this quite a long time ago now, we were together about 4 months, he lived about 35 miles away. He ended it, I could feel him drifting in the last couple of weeks. I was devastated. I did what you haven't done yet....made myself look desperate and like an idiot.
At the time, I thought he was amazing and just couldn't let him go in my head. I spent the next 6 months to a year trying to get him back lol. When I look back now......I dread to think what he must of thought of me to be honest. I'm so embarrassed looking back....absolutely cringeworthy stuff
Obviously it didn't work either, if anything I just pushed him away even further....so yeah don't do what I did,
But anyway, you deserve so much more than him. I get the place that you are in now though, no one will compare to him, you can't stop thinking about him etc etc....you could get thousands of people telling you he's not worth it and you won't be able to listen because you just aren't in that place yet.
But it will get easier, it really really will. Concentrate on yourself and yourself only. NOT HIM. Compared to me and how I was, your doing really well xx