Your sixteen year old and seventeen year old still need you as a role model and parent in their life. Don't give up that blessed responsibility for any man. Any religion. Or any advice.
Confuuused, I am curious. Why did you start studying with the Witnesses in the first place? Do you have an interest in spiritual things? Do you want to have a moral foundation for your life? What are you seeking?
If I know what you are looking for, I might be able to redirect you to some other resources who are less harmful than the Witnesses.