Effexor XR Questions

Hi All!I have been on Effexor XR for years, and it saved my butt when I was down. Currently, I am wondering if it is working. I have cut down from 225mg/day to 150mg and am doing okay (headaches).I would appreciate any experiences with this drug. I have tried others, and none agreed with me. Lexapro, Paxil, Zoloft, Well Butrin, Prozac etc.... Yoga helps, but I can't do this every morning and evening!