Emotional Dumping Ground

Ok, this is mainly to vent. I am so sick of being my mom's dumping ground, she needs to talk to someone else. It makes me feel helpless,and when I feel helpless, I feel useless. I just wish I could have happier onversations with her for a change or at least help her cope with a problem I know how to deal with. I'm supposed to be the one needing the help, and not the one dishing advice. At least not at the rate it's going. I talk to professionals from time to time, so does she. I can't take it. If anyone have any advice or comments, they'd be much apperciated.