I really don't think you should have that much trouble finding some basic authoritative information on bisexuality on the Internet. As regards changing sexual preferences, you are what you are. You can choose only to cultivate heterosexual interests, but the other will remain dormant. It's unlikely that it could be "cured," because there may not be anything truly abnormal about it for you in the first place. It may be just the way you emerged from the womb.