Here's something I wrote for Loyola Press a few years ago, which I share in the hope that it might bless you today (click Praying with Mary below).
Scroll down for another great video from Fr. Mike Schmitz and for a prayer to Our Lady of the Immaculate Conception.
Prayer to Our Lady of the Immaculate Conception
O most Holy Virgin, immaculate in body
and spirit, look kindly on me as I implore
your powerful intercession.
O most Holy Mother, receive my prayers
as I present them to God.
(state your intentions here)
O Mary, Mother of Jesus and our Mother,
you intercede for us with your Son.
O Mary conceived without sin,
pray for us who have recourse to thee.
O most Holy Virgin, immaculate in body
and spirit, look kindly on me as I implore
your powerful intercession.
O most Holy Mother, receive my prayers
as I present them to God.
(state your intentions here)
O Mary, Mother of Jesus and our Mother,
you intercede for us with your Son.
O Mary conceived without sin,
pray for us who have recourse to thee.
Amen.