One more person chiming in......and I'm a newbie. I have fought these same issues while being on HRT for the last two years, at age 45. No DHT blockers,though.
My opinion,after looking at the new labs,is that your Prolactin is still too high. My lab value originally, was about a "4",on a 2-15 scale,and I could really feel it. Just my 2 cents,but try to get it lower.......say, about a 1. It made a big difference for me. I might be out of line,but this may be one of the times when the lower you can get it,the better. If you do get it really down there,at least you can cross it off,as a possibility.
The best thing about treating it,is that you can easily adjust the doseage,and get it tested. If .5 mg, at 2 x week, is not lowering it enough,try it every three days.
Another thing I have noticed,is that Estrogen may be the other culprit. You are well aware of what the "normal range" is,but for me,I need it in a very specific range. For example,I function best around 40,on a 7-50 scale. Seems kinda high,but everyone is different. I have kept extensive records,and have even had my blood tests done,on days where I felt the horniest,just to see what was going on.
Hope you get it figured out. I have been there and I feel your pain.