Yes, read Passionate Marriage, Or Intimacy and Deisre or any articles of Schnarch you can get your hands on.
I respect every person has a different learning speed, different maturing speed, different pace. All this time I am wondering if your wife will stick around until you are ready to take the next step. There is no real Marriage without sex. As a woman, that has faced the non desire phase, I can tell you, it was verrrrrrry painful. Kalni