can't do anything right. needed to vent.

I don't even know where to start, I just need to vent and know someone out there is listening... I feel like my marriage is going downhill... husband is constantly telling me I don't know how to do anything right. I hear it so much that I'm starting to believe it. I wish things were differently, but they're not. I'm at SAHM and student online. Husband works and supports me and our son. But everytime something goes wrong he tells me I'm fat, lazy, worthless and last night was the first time he said he hates me. The fights are usually pointless and they always end up with him yelling at me. I don't say anything because when I do he tells me I should just leave. I don't know where I went wrong to find myself is a relationship where I'm hated. 
Thank you for listening.