I have to agree with Mr. Y. At this particular moment asking for the intercessions of the Theotokos may not be something that your priest stresses simply because he can see that you are not ready to embrace it. Indeed, you may be working on something else that requires different tools. However, I suspect that there will come a time that you will have a shift in attitude. I know it happened to me about 5-6 months after I became serious about conversion. Where I was once suspicious regarding the Theotokos and the honor and veneration accorded her, now I have deep and complex feelings of reverence and love for her. The reverence is for her faith--it was her perfect faith in God that allowed her to say "Let it be to me according to your word." She did not waver, or consider how it would affect her life. She simply placed her faith in God. It is her example of perfect faith that we should all strive to embody. As she received Christ into her womb, we must accept Christ into our innermost being. And the love? Well, that came on gradually, as I learned more about her, and as I grew in my understanding of what it means to be Orthodox. I have to say as well, if you see a person every day (in my icons at home, and in my parish), you begin to develop a relationship with her. When I look at my icons and pray, I use them to think of the person with whom I am conversing. Thus by praying and learning I came to know the Theotokos, and to love her. I cannot imagine how anyone could get to know her and not love her. She is an amazing person, someone I would like to emulate if possible.
Hope this makes sense.