Mazel Tov!
I mean that sincerely. I am not up to that level, even though people tell me I should get a black hat. While I dont judge others who want to wear a black hat who are not yeshivish, for me, I think a certain level of competence in learning has to be achieved to wear one.
While some may think its no big deal, to me, I think it is fantastic that you are doing this, and it says a lot about your growth and commitment, which benefits all of us.
The only tip I have is to wear it with the brim down. It look sharp. I think the brim up and the hat sitting on the back of the head is not as cool.
Have the best Shabbos ever, and enjoy your black hat!
: )