Hi, polycythemia vera is a blood cancer, but you only have polycythemia - which simply means an increased number of red blood cells but not being a cancer.
TRT is known to cause polycythemia, but I don't think that leads to polycythemia vera. The possible risk that is talked about is from blood clots, because the blood gets thickened. However, your hematocrit is 49.6%, while the level for any worry seems to be 52% or greater.
You can donate a unit of blood to reduce the number of RBCs. I don't know how long it should take for the number of RBCs to go back down naturally.