interacting with parents drains me

Being in my own house and room makes me have flashbacks and just causes me anxiety in general. I'm better when I spend time alone outside so I spend a lot of time in cafes. So today I basically spent like 5 hours at the cafe in front of my house. I'm finding it hard to explain my situation exactly but on 'bad' days every time I interact with my family at all it just leaves me a mess, like it emotionally drains me. Even when they don't say anything much, just their attitude towards me or their tone, it just makes me break down. Today I was trying to work on an assignment in the cafe and then my mom called about something along the lines that i couldn't take a day off from school (another story but it wasn't anything that serious). Halfway during the call I just couldn't take her voice anymore and just hung up. It left me in tears and I had to take a long time to calm myself down before I could continue my work. This repeated several times, every time my mom called me about that thing I just broke down and had to distract myself before I could work again.
I think the only solution to this is to leave my house and family when i get older but I still have to endure years and years of this.
Also I didn't know where to categorize this so yeah

It's terrible to feel this way. I was in the same situation as you. That's why I moved out at 17. Best decision ever. Now I'm 35 and I don't speak to my parents. They are never happy. And I always am. So I refuse their disease to spread to me.

In the mean time, you can limit your time with your parents. Spend more time alone or with friends (which ever makes you happier). Do your homework at the cafe, library, or even at the mall. Trust me, even that noise at the mall is better than the chaos at home.

Unless something drastically changes at home, this scenario won't improve until you move out. Living with your parents is tough since they feel they have power over you.

The other feeling you may or may not be experiencing is suffocation. It can feel like you're being deprived of air when you spend so many years with the same people. Some people enjoy spending all day with their parents, while others like to be left alone -- and enjoy the peace and quiet.

All is Revealed has some great advice I'm sorry you have to endure this

I have the same experience. Parents can drain us because they need something from us. It could be attention, chores, and other personal needs of their own.
But with that you may want to evaluate what they give you.
And with that, develop the powers to be more independent, because you are the first person who takes care of you.