Its exhausting being around my family

This is gonna be pretty hard to put into words but its tiring and exhausting being around my family. Dont get me wrong like yay im so grateful for everything they’ve done for me but my family is SO hard to understand. First im talking about my brother. One second hes funny and were getting along, the next second were arguing. And its so stupid too like he always wants to be right and he wont stop till like i give up. Due to this ive completely gave up on trying to argue back, ill just be angry but dont say anything, because i know he wont admit hes wrong. My parents too, i dont even know how to explain, my dad is extremely impulsive, he acts on impulse and sometimes gets us into situations just because he did it without a second thought. Once again he thinks hes the one always right (Probably where my brother got it from) My mom, sometimes i feel bad for her. She deserves someone better than my dad. Anyways, she doesnt know the word boundaries/or privacy idek, Ive been writing in my journal for a few years and kept it pretty well hidden until i accidentally left it on my bed. I wrote everything on there, everything about my feelings. I definitely went through some of the lowest points in my life and wrote about it. It was the only way to help me calm down because i especially struggled with $h and Eds. As soon as I went back home she immediately used it against me, guilt tripping me and saying that shes done everything she can for me and that im ungrateful and all that stuff. Like Im SO SO SOO grateful for my family, but genuinely its so tiring to be around a family who always wants to be right. Its why i hate coming home from school or never get out of my room. I used to be a really energetic kid but now i cant even speak to my own family without being awkward and like forced to.

Sorry if it doesnt make sense or anything, or that its not that bad. I get if my situation isnt really that bad but ive left out some major things because i really dont know how to explain :(

I just really need to atleast put this out somewhere because i cant write this in my journal anymore ever since my mom went through it. And i dont wanna be a burden to my friends by venting