I would say that you need more time to think about it because you fear being disfellowshipped and them not talking to you. If they use the fear of driving a car/drivers license example say but you fear losing your family which is completely different.
If all else fails play the mental health card. Say god spoke to u and told u not to do it. Heck, do what you have to do.
If you do go ahead and get baptised then becareful being on sites like this and becareful what you say because you can be disfellowshipped the day after baptism.