Hi Maria Nieves,
I saw myself in your post.
It may be difficult to just stop, especially when you think about your relationship with your Bible study conductor and how much time she has "devoted" to studying with you
However, the best time to stop is now.
The universe is giving you a gentle nudge that something is wrong with this religion. It is better to stop now than to feel forced, get baptized, and feel forced to worship the organization for the rest of your life.
My Bible study conductor whom I was very close with does not "care" any more, even when I became I witness. The moment we express any doubts to JWs, things get complicated.
I really really hope you control this situation now and control your future while it is still early.
OND