Stressed? No more life i don't know what to do.

So.... it seems my life is falling apart yet again.
But I am able to control my emotions a lot more so I feel numb and not deadly wanting to cut or urge to do anything.
I keep busy with school and music, and chores and friends. :) I enjoy it.
I'm not happy at the moment, I'm very concerned for my parents who I see breaking down and freaking out because they don't know what to do. They hurt and I can tell and they are trying their hardest. They are, and they are doing the best they can and I love them and would want to trade places with them to let them free of this burden that is putting drama and hurt into our lives. I want them to be okay, seeing them go crazy or just become numb is hard. Because I don't know what to do or how to help. So I am helpless and making my own way.
My sister has had a lot happen between boyfriends and school, and the stress she is putting on my family is hard. and I apparently did the same thing a while back. I'm not sure I want to cause that to my parents again. So I have postponed that until I know I can grasp my own relationship and start one. :)
My parents are incredible and smart and charming and amazing. They know what they are doing and they are amazing people they are strong and wondrous faithful people.
I want everything to be okay, so I'm having faith in God and he knows what's going to happen and let him deal with it. That's why I don't feel stressed, yes I'm upset and a little depressed but what ever is happening with my sister and the problems it brings, I trust God.