Why do my parents struggle to the point of becoming violent and mentally hurting me?

Parents usually get too angry and then they try to put all of your anger out of you. They shouldn't do that and know not too.

Sometimes parents do only what they know to take care of their kids and it does not mean that they are bad parents, just means that they are lack of experience and they do not know how.

This behavior stems from something they themselves have not yet identified manifesting itself in violence and mental abuse. There is always more to a story and understanding that story may sometimes just lead to an acceptance without having answers or sometimes it can be all about trying to communicate and accepting what the result of that communication is. Either way, it is important to never take harsh criticism to heart and violence should not be tolerated. Seeking help for any kind of abuse is key especially at an early stage.

they just want the best for you and they think this is the best way you have to tell them how you feel as a person