brown_obsession,
seems like you are going through what I had went through before, I
am born in a traditional taoist family. Till age 16, I would not
have been able to imagine myself being Christian (so uncool, so
much rules®ulations ...etc),
So when I first accepted Christ, I was not sure how to let my
parents know about it.
So its with much prayers and encouragement from my friends that I
sit down and discuss it over with my parents respectfully (key is
must be with respect to them), Thank God that after that
discussion, my parents was able to accept me being a
Christian.
If I may add this, as our parents/siblings may not be ready to be
Christian yet, do not try to convert them "by force", especially
parents. Do however continue to pray for them, and entrust them
into God's hands. Another thing is, must be truthful to them and
not keep them in the dark, pray for a right opportunity to discuss
things with them in a repectful manner.

May the peace of God keeps you strong.