Ok, if the one correcting is a two-faced hypocrite, it is not fraternal correction. If the one correcting is voicing with his mouth what he firmly believes in his heart, it is fraternal correction.
For instance: if I like to dwell on impure content but I admonish a brother, I am a hypocrite. If I struggle with impurity but in my heart I am aware of God’s will and strive for chastity, my correction is fraternal.
It doesn’t stop there. A Pharisaical approach would involve sticking to the bare rules. For instance: did I confess and not eat 1 hour before Mass? Then I can surely receive Communion. Wrong. One should be properly disposed. It takes introspection. The approach, to be more clear, asks “how far is too far”. Fraternal correction in Christ never asks such an imprudent question.
Now to your case: it is not easy when it comes to a spouse, a family member, a relative, a friend. In that order. With a spouse, you are tasked with his or her salvation. With family members (especially if you live with them!) God placed you there for a reason. With relatives, same thing: God placed you in a blood relationship with them for a reason. With friends, the bond is spiritual and not casual, but a friendship, if harmful, can and must be severed.
In general, we ought to love unconditionally as Christ loves. But love for sinners is not love for sin. Tolerance of sinner is not tolerance for sin. Sometimes you must take steps make it clear that a given behavior/action/state of life is sinful. You must not join events/actions that are against faith and morals, no matter how close is the one doing them. But your biggest challenge is to be a witness of Christ. Nobody is a prophet at home. Christ’s relatives considered He was insane. Don’t expect to be able to evangelize your family. Do however strive to be a Christian who follows the fullness of the Catholic Faith, in its orthodoxy and apostolicity. Be simple and joyful. Be confident in what you do.
So you fast on Friday and at home they cooked an awesome meat dish? Smile, compliment the cook, and remind them you promised Christ not to eat meat on Friday. Don’t be all serious and grievous, like: oh, I’m doing penance, because it’s Lent, a time of mortification, and good Christians don’t eat meat to be holy, etc…just be natural. Act as Christ would act
But if anything,
- remember 1 Corinthians 13 and live it daily
- and never, ever compromise…remember the countless saints who endured martyrdom rather than denying even the smallest precept of the faith
- you are, like it or not, chosen. Not chosen to be greater, but to be smaller. To be the servant of your brothers. Chosen to offer sacrifice. To become sacrifice. To forgive, love, and pray for those who persecute you. To gain for others the grace of conversion and of final perseverance. It is said that Christ does not refuse this grace when we ask for it. Ask for it, for your loved ones in particular. Christ once transformed water (fallen humanity) into wine (supernatural divinity) even if “his time had not yet come”. He will do it again. Ask, particularly through His mother’s intercession. For it is written: “Speak mother, I shall not refuse you”.