What Do Low Testosterone Levels In A Blood Test Report Indicate?

Question: I sent my most recent blood work and you can see that my testosterone is pitifully low (55 ng/dl). It fell from the 600 range after a, what I consider, overzealous TURP surgery by laser in 2011. Ever since that surgery, I have been unable to achieve an erection, have virtually no sperm or semen and orgasms are an experience of the past. I was very cautious before electing for the surgery, but drugs were not making any appreciable improvement of my symptoms which became serious enough to require self catheterization in order to empty my bladder. I went to a seminar lead by the surgeon I elected, they never mentioned any where near the side effects that have happened to me. They just said to expect "a small decrease in the amount of ejaculate." Now they have castrated me! Now my PCP is administering 1ML of testosterone monthly by subcutaneous injection. I've read this is near worthless and fades away days after administration. Don't I need a regular administration of a topical type at 40 or 50 mg a day? What else can I do to retrieve some of my sexual function and libido? My wife has threatened to leave me. AFTER my surgery I learned of another technique that binds the prostate to clear the urinary path thereby saving any loss of sexual function. but TOO LATE FOR ME! What can I do?