Bad relationship with mom

I have a really bad relationship with my mom and I hate it. She had me at a young age and we both resent each other for it. She pretty much blames me for her decision to raise me at a young age. I don't know what to do, it hurts me more than she knows that she feels like that, and I can't even tell her how I feel because she acts like I tell her my feelings just to hurt hers, not because I'm trying to open up to her. I don't know how to get passed her shell. I wish we were close and had a better relationship but I feel like it's too late at this point, I can't keep trying without any progress...sorry vent over.