The truth of the matter is who will make it to heaven is a lot like trying out for a sports team. Except with a football team you go to training camp and hopefully you make the cut, you make the team.
The life of a Christian is constantly living your life according to the Will of God, knowing that if you live it according to his Commandments, you have a chance at making the final cut, and making the team, i.e., heaven.
No one knows who is in heaven. No one, but if you want to get there, you know what training and commitment it takes. Get busy. Only God knows whether a person has made it to heaven or not. And we absolutely do not know who has gone to hell. God judges your soul and no one else.
And still Catholics pray to so called “saints in heaven”. Now you tell me you don’t even know if they are in heaven or not? And you claim you don’t even know if Mary is in heaven or not yet rely on her to advocate for you? What utter hypocrisy! If Catholics could only see how ridiculous their words and actions make them out to be.