This question has been answered here many times. Here is a good response.
So good it's worth a cut-n-paste:
To: P-Marlowe
As a Catholic, I believe that I was saved in baptism, I am being saved, and I hope I will be saved.
It's simple: Scripture teaches that one’s final salvation depends on the state of the soul at death. As Jesus himself tells us, "He who endures to the end will be saved" (Matt. 24:13; cf. 25:31–46). One who dies in the state of friendship with God (the state of grace) will go to heaven. The one who dies in a state of enmity and rebellion against God (the state of mortal sin) will go to hell.
Salvation can not be earned. Salvation is a gift from God, pure Grace, that we did not merit and do not deserve. Jesus Christ died for our sake and for our salvation. Like any gift, his dead and resurrection can be denied.
"See then the kindness and the severity of God: severity toward those who have fallen, but God’s kindness to you, provided you continue in his kindness; otherwise you too will be cut off" (Rom. 11:22; see also Heb. 10:26–29, 2 Pet. 2:20–21).
Jesus declared: ‘Not everyone who says to me, "Lord, Lord" shall enter the kingdom of heaven’ (Matt. 7:21)."
One Catholic web-site has a good response for the question "Are you saved?"
"As the Bible says, I am already saved (Rom. 8:24, Eph. 2:5–8), but I’m also being saved (1 Cor. 1:8, 2 Cor. 2:15, Phil. 2:12), and I have the hope that I will be saved (Rom. 5:9–10, 1 Cor. 3:12–15). Like the apostle Paul I am working out my salvation in fear and trembling (Phil. 2:12), with hopeful confidence in the promises of Christ (Rom. 5:2, 2 Tim. 2:11–13).
God bless you all.
22 posted on 07/26/2002 1:50:42 AM EDT by Gophack