We cannot share our salvation with anyone else....we can rejoice when others are saved, but the individual's salvation is just that...the individuals.
We become adopted into His family when we believe in Him.
However, my point still stands....writers cited by Roman Catholics say we HAVE to go through Mary for salvation...some even say she dispenses salvation. All thoroughly non-Scriptural beliefs of Roman Catholicism.
We can go straight to Christ for any and all spiritual needs.
I'm pretty sure you haven't quite accessed the "Mystical Body of Christ" reality at its true worth.