Should a Catholic listen to their conscience or the Archbishop in matters concerning their posture at Mass?

Archibishop Cupich asked his flock to not kneel before receiving communion: [Cardinal Cupich Asks Catholics ‘to Receive Holy Communion Standing’ in Chicago Archdiocese](https://www.ncregister.com/cna/cardinal-cupich-asks-catholics-to-receive-holy-communion-standing-in-chicago-archdiocese?) . But I took a personal vow to always receive communion kneeling and on the tongue. In general, should a Catholic follow his or her own conscience in matters like this or abide by the reasoned dictates of an Archbishop? Or, to put another way, what level of fealty does a Catholic have to their Bishop in personal liturgical practices which are allowed by canon law?