Hello there and welcome!
Good job thinking ahead to defend your stand. Hopefully your parents will respect your decision and not cut you off from the family.
Sometimes it is good to take a laid back approach (especially since you are not baptized) and simply tell them you are having some doubts and would like to take a break from "the truth" for awhile. Reassure them that you aren't planning on going crazy but that you want some time to think things through and would appreciate their respectful support of your privacy while you sort things out.
It can hurt to lose friends you've known for years. Although, if they start waking up in the future you can be there for them.
Looking forward to your posts:-) Welcome again!