Most of the time when I visit my extended family, I find myself hating it.
Why do you hate visiting most of your extended family?
Being in a family with so many people is too much for me.
I can understand how it might be a little overwhelming. I think it's wrong to not make an effort when around family. Maybe you can see them in small doses that way you can make more of an effort with them.
I don't care, I just want to get away from everyone.
You don't need to see your family for most of the year, so when you do see them you should try putting in an effort to make it fun and exciting. They would probably appreciate it a lot.