I see you’re female and can’t move out, so it’s hard to give advice without knowing a bit more. Your age? Relationship to the errant family members? State of life and duties? If you’re 38, single, gainfully employed, and renting a room at your pagan cousins’ house, sure, move out. Lots of people rent rooms where minimal interaction is required. But I don’t think that’s your situation.
If you’re 14, in school, and have recently converted or discovered your REAL faith, then no, leaving isn’t an option unless something illegal and grossly immoral is directly harming you and perhaps other innocent parties. (Human trafficking, the house is used for cooking meth, drug dealing and use, one or more persons is sɛҳuąƖly abusing others, extreme neglect or physical abuse, etc.)
If it is a matter of sins whose continually grating on your nerves, swearing, using Holy Names as profanity, lying, gossip, disrespect, lack of order, improper dress, laziness, purchasing items they can’t afford, addiction to internet, overuse of alcohol, smoking weed, cohabitation, casual hook-ups, bad music…I’m sorry to say this is “normal” for many, many people. A woman who nags is soon tuned out, sooner even, than a man. You say “rebuke;” is that your place? A mother may rebuke her child, even her adult child, but it is out of God’s order to rebuke your father or your brother, for example. It’s not wrong to state the truth and how its violation affects you. It’s wise to place boundaries on certain behaviors as they relate to yourself.
An example, a certain cousin of mine requested my help in cleaning her car. I agreed and she (predictably) kept using God’s Name in vain. After the first time, I gave her my “look.” The second time I reminded her that it was wrong and I found it offensive. The third time I informed her if I heard it again, my assistance would come to a stop because I had an exam needing study at the library. I didn’t allow her to argue by never responding to verbal jabs. When she swore the fourth time, I switched off the vacuum cleaner, showed her where I’d left off, and said something like, “You’re car will look years newer when it’s done,” as I exited the garage. Yes, she got upset, but I didn’t nag, didn’t argue. I just removed myself from the situation and did something else. I set a specific boundary and enforced it with action, no words.
You might try something similar suited to your situation. Be sure, though, to pick and choose your battles. Pray to the Holy Ghost for the gift of wisdom.