I like this. My parents did raise me well regarding a number of things (manners, be responsible, budget money, etc.). Their approach was very strict and stiffling. Also, once my sister arrived on the scene, everything seemed to be about her. Not just as an infant who needed attention, but even as a teenager, adult, etc. It is blatantly obvious that my sister is the favorite. It has been noticed by friends and others. My mom will tell you that there isn’t a favorite, though.
This drips of resentment, which can be a corrosive thread through one’s life. Scripture, and Jesus, speak clearly about this, saying not to come to Him with offerings without settling differences with others first. And John speaks of this “If anyone says ‘I love God’ but hates his brother, he is a liar.” Of course Im not suggesting you “hate” your sister or parents but it seems apparent that there is intense resentment there, for their preferential treatment of her over you. And you are basically prepared to greatly reduce all contact with your parents because they dont act the way you want them to. That just seems extreme. As in very angry.
“So also my heavenly Father will do to every one of you if you do not forgive your brother from year heart.” MT 18:35
"10 Do not make a boast of disgrace overtaking your father, your father’s disgrace reflects no honor on you;
11 for a person’s own honor derives from the respect shown to his father, and a mother held in dishonor is a reproach to her children.
12 My child, support your father in his old age, do not grieve him during his life.
13 Even if his mind should fail, show him sympathy, do not despise him in your health and strength;
14 for kindness to a father will not be forgotten but will serve as reparation for your sins."
Ecclesiasticus / Sirach Chapters
And…
“(Psalms 68:5-6) A father to the fatherless, a defender of widows, is God in his holy dwelling. {6} God sets the lonely in families, he leads forth the prisoners with singing; but the rebellious live in a sun-scorched land.”
I remember reading the bible when young, coming from a very abusive childhood where I was beaten and whipped regularly by my mother (who doted on my younger brother, definitely the favorite), and was ignored and unprotected by a negligent, absent father.
I realized that God was my Father now, and that I would marry and my wife would not be my mother but replace my mother in the respect that she would be the significant female in my life, not my mother. And so I did marry. And had children. And the challenge became not what kind of parents were my parents still being, but rather what kind of parent was I being and acting like? And what kind of spouse was I for my wife? And the challenge and goal was to constantly improve as a man. Not improve my parents.
And today, though Id like to, I dont have much of a relationship with my mother but thats not really my doing. I have tried. And Im as close to my father as I can be. I call him weekly, and have learned to not try to control him, give him healthcare advice, or have expectations of how he should behave towards me.
Instead I can simply focus on being the best son I can be, rather than focus on how good of parents they could be but arent.
I didnt catch how old you are, or if you are married with children or not, but you seem a little old to be having these kinds of issues with your parents?
Perhaps some Catholic counseling? Or focus on yourself, and be grateful you arent from a highly abusive family or abject poverty.
