You're correct, I believe. Anger does have to come out once it has developed. Hopefully it can come out in constructive ways not destructive ones. Your parents, by their methods, are forcing you to develop alternatives that are unconstructive, if not destructive.

When I was growing up, many years ago, children were not allowed to express anger toward parents. And I will tell you that the circumstances of my growing up were such that I had allot of anger. But since no one talked about such things, & I could not express it, I just swallowed it. As a result, I'm still angry all these many years later.

I hope you can learn ways of releasing your anger in constructive ways. This may necessitate some therapy services at some point, if not now, then in a few years once you are on your own. If you find yourself still feeling angry & taking it out on others in passive aggressive ways, then you may want to consider seeking out some therapy services. Once these kinds of ways of dealing with anger become engrained, they can be difficult to get rid of, even once the reason for them developing to begin with is gone. My best wishes to you.