Funnyfish, if I understand from your previous posts, your GCC is around 8 or 9 months old, is that correct? GCCs do, unfortunately, have a bit of a reputation of being bitey, as well as highly intelligent. They are also not above a bit of emotional manipulation. Many GCC owners employ the "shunning" method with a bitey young bird. EVERY time your bird bites you, pop her gently down somewhere neutral like the floor (provided you don't have any dogs or cats and that it's safe to do so!), or the back of a chair, and simply walk away with zero eye contact, and leave her for about 2 or 3 minutes or so. Do not take her back to her cage or playstand as this may be exactly what she wants, but if she makes her own way back there that's fine. You and any other member of your household must be 100% consistent in this in order for it to work. After a few minutes you can try to interact with her again, but try to end your interaction on a positive note and before any biting starts, as you do not want to reinforce or reward bad behaviour. Also, consider that your bird may simply not always necessarily be in the mood to interact with you.
A biting young bird in a wild setting would risk being ostracised by her flock, and that would have very serious ramifications for safety. Conures are very smart and yours should soon get the message that fun with her flock stops when the biting starts!