As a transgendered woman, I wonder how long it really takes to feel all woman...my transition has been living as a woman for 6 1/2 years?
I’m not a medical professional and so I really can’t speak to the medical/biological aspect of your question. But if you and I were sitting chatting and you asked me this question, I would probably suggest that you reach out to a support group and/or resource center in your area. I imagine that feeling all woman has a lot to do not only with your physical transition and your mental state. How are you feeling? If you find yourself struggling, this might be a good time to find a counselor who can support you through rough times and can help you identify and recognize your “normal.” The bottom line is that you need to accept that normal for you may be different from what other people feel so at the end of the day all you need to do is feel comfortable and happy in your own skin.
There are some good resources at the National Center for Transgender Equality.
Don't be shy! Say what's on your mind and get a good dose of perspective in return.