hi Mer, HNY. The difference between Catholics and Protestants is RC's do good works to try to earn salvation, and we do them BECAUSE we are saved. BIG difference.
You mistake discipleship as "trying to earn salvation." Remember, unlike some Protestants, Catholics do not believe "saved" happens in a single instance of time. Rather, salvation is a way of life, a way we choose to live every day of our life. Salvation/redemption is not the Protestant idea that in a single instance they are guaranteed, after death, a place in heaven.
The Catholic belief is that one enters into salvation, redemption, the kingdom in this life and this salvation, redemption, kingdom continues into the next life. Catholics recognize the balance between God's promises and God's final judgment. We do not tell God our place in eternity. Rather, we trust His promises and His final judgment.
Also, I have asked you before if you are saved and you said you hope so, don't know, its up to God etc.... which proves that YOU HOPE you are "good enough" to be saved, go to Heaven etc... which proves my point. It isn't based on our performance or obedience.
I probably said (as I usually do) that I pretty much reject the term "saved" as used and defined by Protestants. Redeemed is more precise, as is The Way of Salvation. Also remember the Catholic definition of "hope". In Catholicism, hope is defined not as an unknown wish, but as an expectation. The reason I live salvation and choose to live a redeemed life is because the way of salvation/redemption gives me the hope (expectation) of a more abundant life here and now--and I have the expectation (hope) of eternal life.
Next time the Protestant idea of "earning salvation" comes to mind, ask yourself how a person can earn the road on which they are already traveling. The road of salvation is open to everyone--so that cannot be "earned" either.