How to move on from a 13 year relationship?

I met him when I was 17, we had a child together when I was 19. We never married (thank God), but I’m 31 and just now finding the strength to leave. It’s like I don’t even know how to be me without him. Every single thing reminds me of him/us. I’m not in a position where I can move away from this small town and start a new life, not for another 4 years. It hurts so unspeakably much. I’ve lost all interest in life, I just walk around with a cannon ball in my chest. I feel like I’ll never move on, or I’ll never be able to be with anyone else. Is this just my lot in life? I don’t drink or smoke, so escaping the pain is not an option. Can anyone who’s been through anything similar share tips on how you were able to move on?
How to move on from a 13 year relationship?
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