Believe what you want but Christ himself said the following and the Rosary stands diabolically opposed to what he taught and subsequently your prayers do as well.

~"But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking." -Matthew 6:7

Mary is dead and cannot hear you and had she not believed in Christ as the Messiah, and she did, she would have also perished...

Another thing you should know about is that while the Vatican may call her Mary, they truly worship Astarte and her son Tammuz and this was prophesied as the religion that would "appear as a lamb, yet speak as a dragon". Astarte mourned for 40 days after Tammuz/Horus (Offspring of Nimrod which is another name for Osirus/baal) was killed and she was a fertility goddess so at the end of the Forty days they have a celebration for her fertility aka Easter.

40 days of Lent followed by a celebration called Easter with bunnies and eggs... Open your eyes and come out of her...