How do I?.. (read description)?

Okay, so I've been ridiculously depressed for a while now. The love of my life completely crushed me multiple times, most recently being the weekend after Memorial Day. I'm done trying w/ her now. Ever since Easter-ish (when she cheated & broke up w/ me), I've been spiraling deeper into depression. For a while, it hit me really hard. Like to where I contemplated offing myself. Since then, I've also become an atheist. Ever since Memorial Day though, it's been really hard for me. All I can think about is her. I used to get high & that helped. I promised someone very close to me I'd stop, so that's not an option. I have two people I'm close to that I talk to. That really helps. But I can't expect them to always have the time to talk on the phone. Listening to music doesn't help. A lot of the songs I listen to remind me of her, so I get even sadder. Sleeping isn't helpful either. I mean it was, but lately all I dream about is her, be it a good or bad dream. Anyone know what that could mean? Anyway, I'm just tired of constantly felling so damn empty all the time. It really f**king hurts. So what I'm asking is how do I escape all this sadness & pain?