I have been on Effexor XR since 2001 and I had the same problem not too long ago (about a few months ago). I can't say if it will work for you as I am not your doctor but what worked for me in my opinion was adding another antidepressant to boost the Effexor. For me, my doctor added Abilify and I have been feeling pretty darn great and it is such a refreshing change! Maybe have another conversation with your doctor when you can and see what works for you.
I hope you find a good solution for you. I know how tough this can be.
P.S.
I still get lectures from my momma and I am 34