I'm sorry you're struggling.
You all need more space, but that is stating the obvious and not everyone has that available to them. Just know that tight quarters can contribute to the frustration. If you can go somewhere for a change of scenery, (relatives) then that would help. Speaking as a mom, just watch who you hang out with....

Being young and at home is so tough. It's almost a given that you won't get along with your sibs and parents...you have to balance respect and growth and that's a difficult thing to do.

Your parents are not always right....but they are your parents and until the time comes that you are grown, there are some things that you have to tolerate. If you do have an issue that is outside the norm, you must find someone outside to tell. If not, the best thing to do is to be the calm one. Easier said than done, but a shouting match accomplishes less than a quiet conversation or a well-worded (non-accusing) letter.

It is stressful for you, indeed. I wish I had some advice besides what I just said. Just know that you are not alone and home life is not as perfect as a lot of your friends might make it out to be. It just isn't. Sadly a lot of parent don't realize what they do until much later in their kids lives...I know I made mistakes. But everyone does.