But this is the part that intrigued me:
Protestants believe that since the Holy Spirit resides in us, we don't try to avoid sin; rather the Spirit makes it repugnant to us. That is not to say we don't sin for, like Peter, the flesh is weak. But when we grieve or quench the Spirit, we know about it and He leads us to repentance.
I have been busy and away from FR myself as well,Dear Brother.
To answer your question.. No, I do not think it is possible to live a sinless life with the exception of Jesus and Mary(who was full of Grace given to her by God)
That said, I think it is very possible for someone to lead a life without committing grave sin,not venial sin
Harley-""Protestants believe that since the Holy Spirit resides in us, we don't try to avoid sin; rather the Spirit makes it repugnant That is not to say we don't sin ""
If you knowingly commit sin,it's because YOU DID NOT try and avoid the sin and your coscience was not rightly formed
The Formation of Conscience(from the Catechism)
1783 Conscience must be informed and moral judgment enlightened. A well-formed conscience is upright and truthful. It formulates its judgments according to reason, in conformity with the true good willed by the wisdom of the Creator. the education of conscience is indispensable for human beings who are subjected to negative influences and tempted by sin to prefer their own judgment and to reject authoritative teachings.
1784 The education of the conscience is a lifelong task. From the earliest years, it awakens the child to the knowledge and practice of the interior law recognized by conscience. Prudent education teaches virtue; it prevents or cures fear, selfishness and pride, resentment arising from guilt, and feelings of complacency, born of human weakness and faults. the education of the conscience guarantees freedom and engenders peace of heart.
1785 In the formation of conscience the Word of God is the light for our path,54 we must assimilate it in faith and prayer and put it into practice. We must also examine our conscience before the Lord's Cross. We are assisted by the gifts of the Holy Spirit, aided by the witness or advice of others and guided by the authoritative teaching of the Church.55
54 Cf. ⇒ Ps 119:105.
55 Cf. DH 14.