How do you convince yourself to get over a "breakup"?

I really liked my guy friend, and we were pretty close, we used to text/talk almost everyday. We had never gone more than 3 weeks without taking since we met. He would show signs that he was into me but would always say that he wasn’t good at commitment, didn’t want commitment.

So I finally let him know that I have feelings for him, and that I like him. To my surprise he says he doesn’t see himself being with anyone right now. so in other words he doesn’t want to date me. I was completely shocked, but after a few days I got over it, I wasn’t sad, I was glad I did it and finally knew.

We stopped talking for a bit ( I realized I couldn’t be friends with someone I liked that much) But then he started going out of his way to contact me, text me, and I responded and we were back to being friends again…. Until I saw him at a friends party, we barley talked and I tried to keep my distance. I text him the next day and he responds with who is this… I was crushed/devastated, (he should have known it was me from the way I replied.) We haven’t spoken since…... and it’s been weeks. I doubt he ever will. And now I’m a mess. I cry everyday, and I feel so sad and hurt. It was one thing to know that he didn’t feel the same, but to not even want to be friends anymore. I’m really sad, and I just want to be normal again.. how do you feel normal after something like this?