Believing something doesn’t make it true, and besides, you should be ready to give an answer for what you believe. (1 Pe 3:15) Telling me to go away isn’t exactly a compelling argument.
Praying together with fellow believers is not the same thing as asking a dead saint to intervene on your behalf.
With all respect to your Catholic faith, if these men of the past prayed to Jesus or to the Father for their needs, why shouldn’t you? You have the same access to the throne of grace, and indeed, Jesus, the perfect and ultimate final sacrifice for sins, has paid a price no man, regardless of their greatness, could ever better.
Why can’t you let people work out their own path to salvation? Conceit is a form of pride, isn’t it? Why should anyone have to answer to you?