Well, the first thing you must know before receiving Holy Communion is that unless the bishop has given your boyfriend’s dad authority to instruct you in a private RCIA class, and also given him the authority to welcome you into the Church outside of Easter Vigil, then you must not receive Holy Communion at Christmas. If your boyfriend’s dad does have this authority, then the only thing I would advise is to approach the sacrament with faith and a silent heart.
Because of the nature of the sacrament, non-Catholics are not permitted to receive Holy Communion, and according to your screen name, you are not yet Catholic. If you are sincere in your intent to join the Church, then you will respect the Church’s teachings and not try to go around the prescribed methods of receiving people into the Church.
God bless you! God bless you! God bless you! It’s so nice that you’re on your way Home