I would not recommend leaving your family, not unless they were a very bad influence on you or seriously endangering your soul…but in this case, i would say to work on your humility and patience,
i personally know what you are talking about, some in my family are very much like what you described, and it’s also driven me to tears at times, even to the point of wanting to leave them,
but we have to look at this from a spiritual point of view, and i’m sure that’s one reason why you’re asking on here, because you know there’s more than one side to all of this, and the other side of it is, God doesn’t place us in those kinds of situations without good reason, there is surely some great spiritual benefit for you in all of that, and if you can work at obtaining those spiritual benefits, it will not only help you, but your family also.
of course when there is a difference of belief in your family, whether religion based or politics or whatever else, then conflicts will inevitably arise, and you just have to deal with that somehow(preferably in a virtuous way) and it’s not gunna go away even if you leave, although it may not be the same, but these kinds of conflicting situations happen anywhere you go, and because you can’t change the world, so instead the answer is to change yourself…
and who would say “no” to having peace in all things? because that is what will result if you earnestly work to change yourself in conformity to Gods will,
now of course i don’t know what kind of arguments arise in your family or what are the causes of your conflicts, but in any given situation there is a right way to act and a right thing to say(or not say), and you can learn those things simply by learning your faith(especially the virtues), and for that i would recommend reading “The Imitation of Christ”, or “Introduction to a Devout life” which you can find on
www.tanbooks.com
of course changing like that would not happen over night, it is something that you will learn and grow in over time, and you will just need to be patient with both yourself and your family in the meantime,
although i know, the immediate family is always the hardest to get along with apart from anyone else, but the reason for that is because they are the ones you are most comfortable with, although not comfortable in a good way, but what i mean is, with your family you show your true colors, for example, someone may think they are very patient because they are easy going with their friends or co-workers, and then when it comes to their own family they put up with nothing, and make every excuse such as “you can only take so much!” or something similar.
but the fact of the matter is, you are either patient, or not, you can’t be patient in one aspect, and impatient in another, and still call yourself patient…God gives us those trials, not to prove ourselves to Him(because He knows us far better than we know ourselves) but instead to see ourselves as we really are, to prove to ourselves what we are,
and since i have learned that, i have instead seen my family situation as a great gift from God, as an opportunity to know myself in a far better and clearer way than i would anywhere else,
but there is one thing that must be obtained before all of that, and that is to have God as you end in all things, in every act, thought, and word, to have God as your only goal, otherwise it all falls apart, because when we have secret goals, such as pride, vanity, greed, or whatever else, then that peace you are seeking is never fully attained,
you can have peace with your family, and truly love them and forgive them, but in order to do that, it’s not your family that needs to change, but you, because you will deal with conflict the same way whether it’s with your family or not, and so even if your family did change, you still wouldn’t have peace, unless you change, so keep that in mind,
just think of how Jesus was treated, how so many hated Him and were terrible towards Him in what they said and how they acted, and of course He did not deserve it in the least, but He accepted it and was silent and was at peace,
He took our impossible cross from us, and in exchange gave us His heart, and we should desire atleast to take some of that cross back from Him, and likewise give Him our heart.
so, as i said before, look at this as an opportunity, not just to grow in virtue, but also to love God more and more, because to endure the things that Jesus went through and to compare those sufferings with His, really makes you appreciate what He did for you and makes you love Him all the more for it, especially when we realize that Jesus did not deserve to suffer in that way, whereas we really do, and also remember that when we accept our crosses and try to carry them(by the grace of God) then we are also helping Jesus to carry His cross, and Jesus likewise helps us to carry ours, and so really your burden is lightened.
and i don’t mean to make it sound like you should be ashamed of yourself or anything like that, because i know it is hard and i even struggle with it still, but to struggle does not mean you are losing or that you are weak, it means that you are fighting, and that is a good thing! if there is no struggle then there is no battle, and if there is no battle then there is nothing to win.
and of course in order to win the battle and claim your prize you first need Gods help, because without God we can do nothing, so the first thing you want to do before doing anything is pray, pray your morning and night prayers, and the rosary, every day, and whatever other devotions you like, and also most importantly even above the rosary(although it’s a close call) is to spend time alone with God every day, atleast a half hour, just to talk with Him, about anything really,
and lastly i would say, just take it easy, and try to talk with your priest about it for some better advice.
ok, hope this helps, take care.