St. Thomas discusses a spiritual Communion, where we are unable to receive the Eucharist, but through a true desire for union with Christ, we can receive spiritually. Ideally, we would go to Mass every day and receive the Blessed Sacrament every day, but for most, that is not possible. Instead, we can desire and seek a spiritual communion each day. Pray for union with Jesus, desiring His body, blood, soul and divinity and your prayer will be answered. This is a good prayer for spiritual Communion.
St. Thomas Aquinas
“The reality of the sacrament can be had through the very desire of receiving the sacrament. Before actual reception of this sacrament, a man can obtain salvation through the desire of receiving it, just as he can before Baptism through the desire of Baptism… Spiritual food changes man into itself, according to that saying of Augustine, that he heard the voice of Christ as it were saying to him: ‘Nor shalt thou change Me into thyself, as food of thy flesh, but thou shalt be changed into Me.’ But one can be changed into Christ, and be incorporated in Him by mental desire, even without receiving this sacrament.”