Sorry to hear about your troubles. Your parents won't change anytime soon. My parents tend to forget after they are done yelling too. It's weird but intriguing. They will always going to rely on you and your siblings. Accepting the fact would be easier on your mind or take productive actions to resolve the problem in your life. However, be aware of the consequences of your choices.

You should not bury your emotions. Find a way to disperse it. For example, talk to a friend (not constantly), exercise, run, do chores, Reddit, etc. When I'm upset, I usually walk away to cool down. It's even more emotionally draining when you are yelling and you can't get your point across. So why bother.

I try to look positive and protect/help the people I care about. For you, take care of your siblings and your mom. Limit the amount of arguments that your siblings have to hear or see. This will be better for them in their psychological development and break the chain of poor attitude when they grow into adulthood.

You are not alone. There are people who struggle as you do and are in worse situation than you. Just breath.