I will be a year old next week, and it was only about 3 weeks ago that some of my nerves got back into action. I had resigned myself to my clitoris being only mildly sensitive, and then I had two experiences withing hours of each other that said life was improving greatly. I checked back on my hospital discharge instructions and sure enough, they said that it could be 12 to 18 months for full nerve re-association to happen. At a little under 6 months I actually was able to associate touch with the place I was touching, before then, I had what some call phantom limb experience from touch, I felt it, but at a part of my body nowhere close to its present location.
Next is, what are your expectations of an orgasm?? It is possible that with the wrong expectation, you are going to be disappointed for a very long time. I need to have multiple "stimulation" points, and it does take longer. Also, the O is not in one spot, it is over much more of my body, so I will need a partner to take time and caress more than just my pubic organs. The other item is that some O are not as intense, but happen more frequently.
As you see, you are still very young at this "post op" thing and lucky you seems to have someone to help you practice. Time and patience and you will find things going nicely.