If you're calling them Christians, they ARE saved.
Individual sins committed after being born again do not cause us to lose our salvation. They break the fellowship with God that He would like to have with us. They may make us ineffective in our ministry. They may cause us to lose our reward in heaven. They may cause others to stumble. But they do NOT damn us.
The damnation for our sins was dealt with on the cross. If you don't think so then what you are essentially saying is that the cross wasn't and isn't sufficient.
A reward is by definition something given or received in recompense for worthy behavior, in other words, works. This is different than the presumption of Salvation you have claimed in the past. Of the two kinds of presumption of Salvation, one either presumes his own Salvation based upon his own capacities, (hoping to be able to save oneself without help from God), or one presumes upon God's almighty power and mercy (hoping to obtain God's forgiveness without conversion and glory without merit). You have often presumed the later. I am hoping you have had a change of heart and did not simply misspeak.
What you now appear to be professing is completely in line with Catholic Teaching and with the Gospel. Remember also that Jesus taught the consequences of unworthy behavior in what we have done or failed to do.
Then He will answer them, ‘Truly I say to you, to the extent that you did not do it to one of the least of these, you did not do it to Me.’ These will go away into eternal punishment, but the righteous into eternal life.” - Matthew 25:45-46.