Take a mental break. If there is anything that you are sure of, or not sure of, its ok. There are _______religions in the world on paper, but every human being on this world perceives the world and understands "the truth" differently. Every single JW even! Don't stress on it. Accept it for what it simply IS. And you can tell your mom that you don't want to burn bridges, you are too young to make eternal, irreversible (in JW they are that serious) decisions and you would appreciate her loving patience as you seek and learn. In the meantime, you will be respectful of her moral rules and curfews, etc, and you won't get into trouble because you appreciate that they are raising you to be a responsible adult. All good things she can't argue with. Jesus was 30 when he was baptised. Work hard in school, get to working and gain freedom and space as appropriate. Don't go getting tatts, piercings and experimenting with drugs and alcohol now. Its not going to help anything with your folks and might limit your options in the future, so take your time growing up and do it right! (I am not judging the tatts and piercings, I am simply watching a couple of young cousins suffer for earlier decisions that they would not now make in both of those areas. They are harder to lose than being baptised as a JW-harder to hide, for sure.)